/* eslint-disable */ /* * canvg.js - Javascript SVG parser and renderer on Canvas * version 2.0.0 * MIT Licensed * Gabe Lerner (gabelerner@gmail.com) * https://github.com/canvg/canvg * */ (function (global, factory) { typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('rgbcolor'), require('stackblur-canvas')) : typeof define === 'function' && define.amd ? define(['rgbcolor', 'stackblur-canvas'], factory) : (global.canvgv2 = factory(global.RGBColor,global.StackBlur)); }(this, (function (rgbcolor,stackblurCanvas) { 'use strict'; rgbcolor = rgbcolor && rgbcolor.hasOwnProperty('default') ? rgbcolor['default'] : rgbcolor; stackblurCanvas = stackblurCanvas && stackblurCanvas.hasOwnProperty('default') ? stackblurCanvas['default'] : stackblurCanvas; function createCommonjsModule(fn, module) { return module = { exports: {} }, fn(module, module.exports), module.exports; } var canvg_1 = createCommonjsModule(function (module) { /* eslint-env browser, node */ /* globals $, Sizzle, Windows, ActiveXObject */ /* eslint-disable no-redeclare */ var isNode = (module.exports && typeof window === 'undefined'), nodeEnv = false; var windowEnv; { windowEnv = window; windowEnv.DOMParser = window.DOMParser; } var doc = windowEnv.document, defaultClientWidth = 800, defaultClientHeight = 600; function createCanvas(width, height) { var c; { c = doc.createElement('canvas'); c.width = width; c.height = height; } return c; } // canvg(target, s) // empty parameters: replace all 'svg' elements on page with 'canvas' elements // target: canvas element or the id of a canvas element // s: svg string, url to svg file, or xml document // opts: optional hash of options // ignoreMouse: true => ignore mouse events // ignoreAnimation: true => ignore animations // ignoreDimensions: true => does not try to resize canvas // ignoreClear: true => does not clear canvas // offsetX: int => draws at a x offset // offsetY: int => draws at a y offset // scaleWidth: int => scales horizontally to width // scaleHeight: int => scales vertically to height // renderCallback: function => will call the function after the first render is completed // enableRedraw: function => whether enable the redraw interval in node environment // forceRedraw: function => will call the function on every frame, if it returns true, will redraw var canvg = function (target, s, opts) { // no parameters if (target == null && s == null && opts == null) { var svgTags = doc.querySelectorAll('svg'); for (var i = 0; i < svgTags.length; i++) { var svgTag = svgTags[i]; var c = doc.createElement('canvas'); if (typeof(svgTag.clientWidth) !== 'undefined' && typeof(svgTag.clientHeight) !== 'undefined') { c.width = svgTag.clientWidth; c.height = svgTag.clientHeight; } else { var rect = svgTag.getBoundingClientRect(); c.width = rect.width; c.height = rect.height; } svgTag.parentNode.insertBefore(c, svgTag); svgTag.parentNode.removeChild(svgTag); var div = doc.createElement('div'); div.appendChild(svgTag); canvg(c, div.innerHTML); } return; } var svg = build(opts || {}); if (typeof target == 'string') { target = doc.getElementById(target); } // store class on canvas if (target.svg != null) target.svg.stop(); // on i.e. 8 for flash canvas, we can't assign the property so check for it if (!(target.childNodes && target.childNodes.length == 1 && target.childNodes[0].nodeName == 'OBJECT')) target.svg = svg; var ctx = target.getContext('2d'); if (typeof s.documentElement != 'undefined') { // load from xml doc svg.loadXmlDoc(ctx, s); } else if (s.substr(0, 1) == '<') { // load from xml string svg.loadXml(ctx, s); } else { // load from url svg.load(ctx, s); } }; var matchesSelector; { // see https://developer.mozilla.org/en-US/docs/Web/API/Element.matches if (typeof Element == 'undefined') ; else if (typeof Element.prototype.matches != 'undefined') { matchesSelector = function (node, selector) { return node.matches(selector); }; } else if (typeof Element.prototype.webkitMatchesSelector != 'undefined') { matchesSelector = function (node, selector) { return node.webkitMatchesSelector(selector); }; } else if (typeof Element.prototype.mozMatchesSelector != 'undefined') { matchesSelector = function (node, selector) { return node.mozMatchesSelector(selector); }; } else if (typeof Element.prototype.msMatchesSelector != 'undefined') { matchesSelector = function (node, selector) { return node.msMatchesSelector(selector); }; } else if (typeof Element.prototype.oMatchesSelector != 'undefined') { matchesSelector = function (node, selector) { return node.oMatchesSelector(selector); }; } else { // requires Sizzle: https://github.com/jquery/sizzle/wiki/Sizzle-Documentation // or jQuery: http://jquery.com/download/ // or Zepto: http://zeptojs.com/# // without it, this is a ReferenceError if (typeof jQuery === 'function' || typeof Zepto === 'function') { matchesSelector = function (node, selector) { return $(node).is(selector); }; } if (typeof matchesSelector === 'undefined' && typeof Sizzle !== 'undefined') { matchesSelector = Sizzle.matchesSelector; } } } // slightly modified version of https://github.com/keeganstreet/specificity/blob/master/specificity.js var attributeRegex = /(\[[^\]]+\])/g; var idRegex = /(#[^\s\+>~\.\[:]+)/g; var classRegex = /(\.[^\s\+>~\.\[:]+)/g; var pseudoElementRegex = /(::[^\s\+>~\.\[:]+|:first-line|:first-letter|:before|:after)/gi; var pseudoClassWithBracketsRegex = /(:[\w-]+\([^\)]*\))/gi; var pseudoClassRegex = /(:[^\s\+>~\.\[:]+)/g; var elementRegex = /([^\s\+>~\.\[:]+)/g; function getSelectorSpecificity(selector) { var typeCount = [0, 0, 0]; var findMatch = function (regex, type) { var matches = selector.match(regex); if (matches == null) { return; } typeCount[type] += matches.length; selector = selector.replace(regex, ' '); }; selector = selector.replace(/:not\(([^\)]*)\)/g, ' $1 '); selector = selector.replace(/{[\s\S]*/gm, ' '); findMatch(attributeRegex, 1); findMatch(idRegex, 0); findMatch(classRegex, 1); findMatch(pseudoElementRegex, 2); findMatch(pseudoClassWithBracketsRegex, 1); findMatch(pseudoClassRegex, 1); selector = selector.replace(/[\*\s\+>~]/g, ' '); selector = selector.replace(/[#\.]/g, ' '); findMatch(elementRegex, 2); return typeCount.join(''); } function build(opts) { var svg = { opts: opts }; svg.FRAMERATE = 30; svg.MAX_VIRTUAL_PIXELS = 30000; svg.rootEmSize = 12; svg.emSize = 12; svg.log = function (/* msg */) { }; if (svg.opts['log'] == true && typeof console != 'undefined') { svg.log = function (msg) { console.log(msg); }; // eslint-disable-line no-console } // globals svg.init = function (ctx) { var uniqueId = 0; svg.UniqueId = function () { uniqueId++; return 'canvg' + uniqueId; }; svg.Definitions = {}; svg.Styles = {}; svg.StylesSpecificity = {}; svg.Animations = []; svg.Images = []; svg.ctx = ctx; svg.ViewPort = new (function () { this.viewPorts = []; this.Clear = function () { this.viewPorts = []; }; this.SetCurrent = function (width, height) { this.viewPorts.push({ width: width, height: height }); }; this.RemoveCurrent = function () { this.viewPorts.pop(); }; this.Current = function () { return this.viewPorts[this.viewPorts.length - 1]; }; this.width = function () { return this.Current().width; }; this.height = function () { return this.Current().height; }; this.ComputeSize = function (d) { if (d != null && typeof d == 'number') return d; if (d == 'x') return this.width(); if (d == 'y') return this.height(); return Math.sqrt(Math.pow(this.width(), 2) + Math.pow(this.height(), 2)) / Math.sqrt(2); }; }); }; svg.init(); // images loaded svg.ImagesLoaded = function () { for (var i = 0; i < svg.Images.length; i++) { if (!svg.Images[i].loaded) return false; } return true; }; // trim svg.trim = function (s) { return s.replace(/^\s+|\s+$/g, ''); }; // compress non-ideographic spaces svg.compressSpaces = function (s) { return s.replace(/(?!\u3000)\s+/gm, ' '); }; // ajax svg.ajax = function (url) { var AJAX; if (windowEnv.XMLHttpRequest) { AJAX = new windowEnv.XMLHttpRequest(); } else { AJAX = new ActiveXObject('Microsoft.XMLHTTP'); } if (AJAX) { AJAX.open('GET', url, false); AJAX.send(null); return AJAX.responseText; } return null; }; // parse xml svg.parseXml = function (xml) { if (typeof Windows != 'undefined' && typeof Windows.Data != 'undefined' && typeof Windows.Data.Xml != 'undefined') { var xmlDoc = new Windows.Data.Xml.Dom.XmlDocument(); var settings = new Windows.Data.Xml.Dom.XmlLoadSettings(); settings.prohibitDtd = false; xmlDoc.loadXml(xml, settings); return xmlDoc; } else if (windowEnv.DOMParser) { try { var parser = opts.xmldom ? new windowEnv.DOMParser(opts.xmldom) : new windowEnv.DOMParser(); return parser.parseFromString(xml, 'image/svg+xml'); } catch (e) { parser = opts.xmldom ? new windowEnv.DOMParser(opts.xmldom) : new windowEnv.DOMParser(); return parser.parseFromString(xml, 'text/xml'); } } else { xml = xml.replace(/]*>/, ''); var xmlDoc = new ActiveXObject('Microsoft.XMLDOM'); xmlDoc.async = 'false'; xmlDoc.loadXML(xml); return xmlDoc; } }; svg.Property = function (name, value) { this.name = name; this.value = value; }; svg.Property.prototype.getValue = function () { return this.value; }; svg.Property.prototype.hasValue = function () { return (this.value != null && this.value !== ''); }; // return the numerical value of the property svg.Property.prototype.numValue = function () { if (!this.hasValue()) return 0; var n = parseFloat(this.value); if ((this.value + '').match(/%$/)) { n = n / 100.0; } return n; }; svg.Property.prototype.valueOrDefault = function (def) { if (this.hasValue()) return this.value; return def; }; svg.Property.prototype.numValueOrDefault = function (def) { if (this.hasValue()) return this.numValue(); return parseFloat(def); }; // color extensions // augment the current color value with the opacity svg.Property.prototype.addOpacity = function (opacityProp) { var newValue = this.value; if (opacityProp.value != null && opacityProp.value != '' && typeof this.value == 'string') { // can only add opacity to colors, not patterns var color = new rgbcolor(this.value); if (color.ok) { newValue = 'rgba(' + color.r + ', ' + color.g + ', ' + color.b + ', ' + opacityProp.numValue() + ')'; } } return new svg.Property(this.name, newValue); }; // definition extensions // get the definition from the definitions table svg.Property.prototype.getDefinition = function () { var name = this.value.match(/#([^\)'"]+)/); if (name) { name = name[1]; } if (!name) { name = this.value; } return svg.Definitions[name]; }; svg.Property.prototype.isUrlDefinition = function () { return this.value.indexOf('url(') == 0 }; svg.Property.prototype.getFillStyleDefinition = function (e, opacityProp) { var def = this.getDefinition(); // gradient if (def != null && def.createGradient) { return def.createGradient(svg.ctx, e, opacityProp); } // pattern if (def != null && def.createPattern) { if (def.getHrefAttribute().hasValue()) { var pt = def.attribute('patternTransform'); def = def.getHrefAttribute().getDefinition(); if (pt.hasValue()) { def.attribute('patternTransform', true).value = pt.value; } } return def.createPattern(svg.ctx, e, opacityProp); } return null; }; // length extensions svg.Property.prototype.getDPI = function (/* viewPort */) { return 96.0; // TODO: compute? }; svg.Property.prototype.getREM = function (/* viewPort */) { return svg.rootEmSize; }; svg.Property.prototype.getEM = function (/* viewPort */) { return svg.emSize; }; svg.Property.prototype.getUnits = function () { var s = this.value + ''; return s.replace(/[0-9\.\-]/g, ''); }; svg.Property.prototype.isPixels = function () { if (!this.hasValue()) return false; var s = this.value + ''; if (s.match(/px$/)) return true; if (s.match(/^[0-9]+$/)) return true; return false; }; // get the length as pixels svg.Property.prototype.toPixels = function (viewPort, processPercent) { if (!this.hasValue()) return 0; var s = this.value + ''; if (s.match(/rem$/)) return this.numValue() * this.getREM(viewPort); if (s.match(/em$/)) return this.numValue() * this.getEM(viewPort); if (s.match(/ex$/)) return this.numValue() * this.getEM(viewPort) / 2.0; if (s.match(/px$/)) return this.numValue(); if (s.match(/pt$/)) return this.numValue() * this.getDPI(viewPort) * (1.0 / 72.0); if (s.match(/pc$/)) return this.numValue() * 15; if (s.match(/cm$/)) return this.numValue() * this.getDPI(viewPort) / 2.54; if (s.match(/mm$/)) return this.numValue() * this.getDPI(viewPort) / 25.4; if (s.match(/in$/)) return this.numValue() * this.getDPI(viewPort); if (s.match(/%$/)) return this.numValue() * svg.ViewPort.ComputeSize(viewPort); var n = this.numValue(); if (processPercent && n < 1.0) return n * svg.ViewPort.ComputeSize(viewPort); return n; }; // time extensions // get the time as milliseconds // https://svgwg.org/specs/animations/#ClockValueSyntax svg.Property.prototype.toMilliseconds = function () { if (!this.hasValue()) return 0; var s = this.value + ''; if (s.match(/ms$/)) return this.numValue(); return this.numValue() * 1000; }; // angle extensions // get the angle as radians svg.Property.prototype.toRadians = function () { if (!this.hasValue()) return 0; var s = this.value + ''; if (s.match(/deg$/)) return this.numValue() * (Math.PI / 180.0); if (s.match(/grad$/)) return this.numValue() * (Math.PI / 200.0); if (s.match(/rad$/)) return this.numValue(); return this.numValue() * (Math.PI / 180.0); }; // text extensions // get the text baseline var textBaselineMapping = { 'baseline': 'alphabetic', 'before-edge': 'top', 'text-before-edge': 'top', 'middle': 'middle', 'central': 'middle', 'after-edge': 'bottom', 'text-after-edge': 'bottom', 'ideographic': 'ideographic', 'alphabetic': 'alphabetic', 'hanging': 'hanging', 'mathematical': 'alphabetic' }; svg.Property.prototype.toTextBaseline = function () { if (!this.hasValue()) return null; return textBaselineMapping[this.value]; }; // fonts svg.Font = new (function () { this.Styles = 'normal|italic|oblique|inherit'; this.Variants = 'normal|small-caps|inherit'; this.Weights = 'normal|bold|bolder|lighter|100|200|300|400|500|600|700|800|900|inherit'; this.CreateFont = function (fontStyle, fontVariant, fontWeight, fontSize, fontFamily, inherit) { var f = inherit != null ? this.Parse(inherit) : this.CreateFont('', '', '', '', '', svg.ctx.font); fontFamily = fontFamily || f.fontFamily; return { fontFamily: fontFamily, fontSize: fontSize || f.fontSize, fontStyle: fontStyle || f.fontStyle, fontWeight: fontWeight || f.fontWeight, fontVariant: fontVariant || f.fontVariant, toString: function () { return [this.fontStyle, this.fontVariant, this.fontWeight, this.fontSize, this.fontFamily].join(' ') } } }; var that = this; this.Parse = function (s) { var f = {}; var d = svg.trim(svg.compressSpaces(s || '')).split(' '); var set = { fontSize: false, fontStyle: false, fontWeight: false, fontVariant: false }; var ff = ''; for (var i = 0; i < d.length; i++) { if (!set.fontStyle && that.Styles.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontStyle = d[i]; set.fontStyle = true; } else if (!set.fontVariant && that.Variants.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontVariant = d[i]; set.fontStyle = set.fontVariant = true; } else if (!set.fontWeight && that.Weights.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontWeight = d[i]; set.fontStyle = set.fontVariant = set.fontWeight = true; } else if (!set.fontSize) { if (d[i] != 'inherit') f.fontSize = d[i].split('/')[0]; set.fontStyle = set.fontVariant = set.fontWeight = set.fontSize = true; } else { if (d[i] != 'inherit') ff += d[i]; } } if (ff != '') f.fontFamily = ff; return f; }; }); // points and paths svg.ToNumberArray = function (s) { var a = (s || '').match(/-?(\d+(?:\.\d*(?:[eE][+-]?\d+)?)?|\.\d+)(?=\D|$)/gm) || []; for (var i = 0; i < a.length; i++) { a[i] = parseFloat(a[i]); } return a; }; svg.Point = function (x, y) { this.x = x; this.y = y; }; svg.Point.prototype.angleTo = function (p) { return Math.atan2(p.y - this.y, p.x - this.x); }; svg.Point.prototype.applyTransform = function (v) { var xp = this.x * v[0] + this.y * v[2] + v[4]; var yp = this.x * v[1] + this.y * v[3] + v[5]; this.x = xp; this.y = yp; }; svg.CreatePoint = function (s) { var a = svg.ToNumberArray(s); return new svg.Point(a[0], a[1]); }; svg.CreatePath = function (s) { var a = svg.ToNumberArray(s); var path = []; for (var i = 0; i < a.length; i += 2) { path.push(new svg.Point(a[i], a[i + 1])); } return path; }; // bounding box svg.BoundingBox = function (x1, y1, x2, y2) { // pass in initial points if you want this.x1 = Number.NaN; this.y1 = Number.NaN; this.x2 = Number.NaN; this.y2 = Number.NaN; this.x = function () { return this.x1; }; this.y = function () { return this.y1; }; this.width = function () { return this.x2 - this.x1; }; this.height = function () { return this.y2 - this.y1; }; this.addPoint = function (x, y) { if (x != null) { if (isNaN(this.x1) || isNaN(this.x2)) { this.x1 = x; this.x2 = x; } if (x < this.x1) this.x1 = x; if (x > this.x2) this.x2 = x; } if (y != null) { if (isNaN(this.y1) || isNaN(this.y2)) { this.y1 = y; this.y2 = y; } if (y < this.y1) this.y1 = y; if (y > this.y2) this.y2 = y; } }; this.addX = function (x) { this.addPoint(x, null); }; this.addY = function (y) { this.addPoint(null, y); }; this.addBoundingBox = function (bb) { this.addPoint(bb.x1, bb.y1); this.addPoint(bb.x2, bb.y2); }; this.addQuadraticCurve = function (p0x, p0y, p1x, p1y, p2x, p2y) { var cp1x = p0x + 2 / 3 * (p1x - p0x); // CP1 = QP0 + 2/3 *(QP1-QP0) var cp1y = p0y + 2 / 3 * (p1y - p0y); // CP1 = QP0 + 2/3 *(QP1-QP0) var cp2x = cp1x + 1 / 3 * (p2x - p0x); // CP2 = CP1 + 1/3 *(QP2-QP0) var cp2y = cp1y + 1 / 3 * (p2y - p0y); // CP2 = CP1 + 1/3 *(QP2-QP0) this.addBezierCurve(p0x, p0y, cp1x, cp2x, cp1y, cp2y, p2x, p2y); }; this.addBezierCurve = function (p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y) { // from http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html var p0 = [p0x, p0y], p1 = [p1x, p1y], p2 = [p2x, p2y], p3 = [p3x, p3y]; this.addPoint(p0[0], p0[1]); this.addPoint(p3[0], p3[1]); for (var i = 0; i <= 1; i++) { var f = function (t) { return Math.pow(1 - t, 3) * p0[i] + 3 * Math.pow(1 - t, 2) * t * p1[i] + 3 * (1 - t) * Math.pow(t, 2) * p2[i] + Math.pow(t, 3) * p3[i]; }; var b = 6 * p0[i] - 12 * p1[i] + 6 * p2[i]; var a = -3 * p0[i] + 9 * p1[i] - 9 * p2[i] + 3 * p3[i]; var c = 3 * p1[i] - 3 * p0[i]; if (a == 0) { if (b == 0) continue; var t = -c / b; if (0 < t && t < 1) { if (i == 0) this.addX(f(t)); if (i == 1) this.addY(f(t)); } continue; } var b2ac = Math.pow(b, 2) - 4 * c * a; if (b2ac < 0) continue; var t1 = (-b + Math.sqrt(b2ac)) / (2 * a); if (0 < t1 && t1 < 1) { if (i == 0) this.addX(f(t1)); if (i == 1) this.addY(f(t1)); } var t2 = (-b - Math.sqrt(b2ac)) / (2 * a); if (0 < t2 && t2 < 1) { if (i == 0) this.addX(f(t2)); if (i == 1) this.addY(f(t2)); } } }; this.isPointInBox = function (x, y) { return (this.x1 <= x && x <= this.x2 && this.y1 <= y && y <= this.y2); }; this.addPoint(x1, y1); this.addPoint(x2, y2); }; // transforms svg.Transform = function (v) { var that = this; this.Type = {}; // translate this.Type.translate = function (s) { this.p = svg.CreatePoint(s); this.apply = function (ctx) { ctx.translate(this.p.x || 0.0, this.p.y || 0.0); }; this.unapply = function (ctx) { ctx.translate(-1.0 * this.p.x || 0.0, -1.0 * this.p.y || 0.0); }; this.applyToPoint = function (p) { p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]); }; }; // rotate this.Type.rotate = function (s) { var a = svg.ToNumberArray(s); this.angle = new svg.Property('angle', a[0]); this.cx = a[1] || 0; this.cy = a[2] || 0; this.apply = function (ctx) { ctx.translate(this.cx, this.cy); ctx.rotate(this.angle.toRadians()); ctx.translate(-this.cx, -this.cy); }; this.unapply = function (ctx) { ctx.translate(this.cx, this.cy); ctx.rotate(-1.0 * this.angle.toRadians()); ctx.translate(-this.cx, -this.cy); }; this.applyToPoint = function (p) { var a = this.angle.toRadians(); p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]); p.applyTransform([Math.cos(a), Math.sin(a), -Math.sin(a), Math.cos(a), 0, 0]); p.applyTransform([1, 0, 0, 1, -this.p.x || 0.0, -this.p.y || 0.0]); }; }; this.Type.scale = function (s) { this.p = svg.CreatePoint(s); this.apply = function (ctx) { ctx.scale(this.p.x || 1.0, this.p.y || this.p.x || 1.0); }; this.unapply = function (ctx) { ctx.scale(1.0 / this.p.x || 1.0, 1.0 / this.p.y || this.p.x || 1.0); }; this.applyToPoint = function (p) { p.applyTransform([this.p.x || 0.0, 0, 0, this.p.y || 0.0, 0, 0]); }; }; this.Type.matrix = function (s) { this.m = svg.ToNumberArray(s); this.apply = function (ctx) { ctx.transform(this.m[0], this.m[1], this.m[2], this.m[3], this.m[4], this.m[5]); }; this.unapply = function (ctx) { var a = this.m[0]; var b = this.m[2]; var c = this.m[4]; var d = this.m[1]; var e = this.m[3]; var f = this.m[5]; var g = 0.0; var h = 0.0; var i = 1.0; var det = 1 / (a * (e * i - f * h) - b * (d * i - f * g) + c * (d * h - e * g)); ctx.transform( det * (e * i - f * h), det * (f * g - d * i), det * (c * h - b * i), det * (a * i - c * g), det * (b * f - c * e), det * (c * d - a * f) ); }; this.applyToPoint = function (p) { p.applyTransform(this.m); }; }; this.Type.SkewBase = function (s) { this.base = that.Type.matrix; this.base(s); this.angle = new svg.Property('angle', s); }; this.Type.SkewBase.prototype = new this.Type.matrix; this.Type.skewX = function (s) { this.base = that.Type.SkewBase; this.base(s); this.m = [1, 0, Math.tan(this.angle.toRadians()), 1, 0, 0]; }; this.Type.skewX.prototype = new this.Type.SkewBase; this.Type.skewY = function (s) { this.base = that.Type.SkewBase; this.base(s); this.m = [1, Math.tan(this.angle.toRadians()), 0, 1, 0, 0]; }; this.Type.skewY.prototype = new this.Type.SkewBase; this.transforms = []; this.apply = function (ctx) { for (var i = 0; i < this.transforms.length; i++) { this.transforms[i].apply(ctx); } }; this.unapply = function (ctx) { for (var i = this.transforms.length - 1; i >= 0; i--) { this.transforms[i].unapply(ctx); } }; // TODO: applyToPoint unused ... remove? this.applyToPoint = function (p) { for (var i = 0; i < this.transforms.length; i++) { this.transforms[i].applyToPoint(p); } }; var data = svg.trim(svg.compressSpaces(v)).replace(/\)([a-zA-Z])/g, ') $1').replace(/\)(\s?,\s?)/g, ') ').split(/\s(?=[a-z])/); for (var i = 0; i < data.length; i++) { if (data[i] === 'none') { continue; } var type = svg.trim(data[i].split('(')[0]); var s = data[i].split('(')[1].replace(')', ''); var transformType = this.Type[type]; if (typeof transformType != 'undefined') { var transform = new transformType(s); transform.type = type; this.transforms.push(transform); } } }; // aspect ratio svg.AspectRatio = function (ctx, aspectRatio, width, desiredWidth, height, desiredHeight, minX, minY, refX, refY) { // aspect ratio - http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute aspectRatio = svg.compressSpaces(aspectRatio); aspectRatio = aspectRatio.replace(/^defer\s/, ''); // ignore defer var align = aspectRatio.split(' ')[0] || 'xMidYMid'; var meetOrSlice = aspectRatio.split(' ')[1] || 'meet'; // calculate scale var scaleX = width / desiredWidth; var scaleY = height / desiredHeight; var scaleMin = Math.min(scaleX, scaleY); var scaleMax = Math.max(scaleX, scaleY); if (meetOrSlice == 'meet') { desiredWidth *= scaleMin; desiredHeight *= scaleMin; } if (meetOrSlice == 'slice') { desiredWidth *= scaleMax; desiredHeight *= scaleMax; } refX = new svg.Property('refX', refX); refY = new svg.Property('refY', refY); if (refX.hasValue() && refY.hasValue()) { ctx.translate(-scaleMin * refX.toPixels('x'), -scaleMin * refY.toPixels('y')); } else { // align if (align.match(/^xMid/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) || (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width / 2.0 - desiredWidth / 2.0, 0); if (align.match(/YMid$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height / 2.0 - desiredHeight / 2.0); if (align.match(/^xMax/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) || (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width - desiredWidth, 0); if (align.match(/YMax$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height - desiredHeight); } // scale if (align == 'none') ctx.scale(scaleX, scaleY); else if (meetOrSlice == 'meet') ctx.scale(scaleMin, scaleMin); else if (meetOrSlice == 'slice') ctx.scale(scaleMax, scaleMax); // translate ctx.translate(minX == null ? 0 : -minX, minY == null ? 0 : -minY); }; // elements svg.Element = {}; svg.EmptyProperty = new svg.Property('EMPTY', ''); svg.Element.ElementBase = function (node) { this.attributes = {}; this.styles = {}; this.stylesSpecificity = {}; this.children = []; // get or create attribute this.attribute = function (name, createIfNotExists) { var a = this.attributes[name]; if (a != null) return a; if (createIfNotExists == true) { a = new svg.Property(name, ''); this.attributes[name] = a; } return a || svg.EmptyProperty; }; this.getHrefAttribute = function () { for (var a in this.attributes) { if (a == 'href' || a.match(/:href$/)) { return this.attributes[a]; } } return svg.EmptyProperty; }; // get or create style, crawls up node tree this.style = function (name, createIfNotExists, skipAncestors) { var s = this.styles[name]; if (s != null) return s; var a = this.attribute(name); if (a != null && a.hasValue()) { this.styles[name] = a; // move up to me to cache return a; } if (skipAncestors != true) { var p = this.parent; if (p != null) { var ps = p.style(name); if (ps != null && ps.hasValue()) { return ps; } } } if (createIfNotExists == true) { s = new svg.Property(name, ''); this.styles[name] = s; } return s || svg.EmptyProperty; }; // base render this.render = function (ctx) { // don't render display=none if (this.style('display').value == 'none') return; // don't render visibility=hidden if (this.style('visibility').value == 'hidden') return; ctx.save(); if (this.style('mask').hasValue()) { // mask var mask = this.style('mask').getDefinition(); if (mask != null) mask.apply(ctx, this); } else if (this.style('filter').hasValue()) { // filter var filter = this.style('filter').getDefinition(); if (filter != null) filter.apply(ctx, this); } else { this.setContext(ctx); this.renderChildren(ctx); this.clearContext(ctx); } ctx.restore(); }; // base set context this.setContext = function (/* ctx */) { // OVERRIDE ME! }; // base clear context this.clearContext = function (/* ctx */) { // OVERRIDE ME! }; // base render children this.renderChildren = function (ctx) { for (var i = 0; i < this.children.length; i++) { this.children[i].render(ctx); } }; this.addChild = function (childNode, create) { var child = childNode; if (create) child = svg.CreateElement(childNode); child.parent = this; if (child.type != 'title') { this.children.push(child); } }; this.addStylesFromStyleDefinition = function () { // add styles for (var selector in svg.Styles) { if (selector[0] != '@' && matchesSelector(node, selector)) { var styles = svg.Styles[selector]; var specificity = svg.StylesSpecificity[selector]; if (styles != null) { for (var name in styles) { var existingSpecificity = this.stylesSpecificity[name]; if (typeof existingSpecificity == 'undefined') { existingSpecificity = '000'; } if (specificity >= existingSpecificity) { this.styles[name] = styles[name]; this.stylesSpecificity[name] = specificity; } } } } } }; // Microsoft Edge fix var allUppercase = new RegExp('^[A-Z\-]+$'); var normalizeAttributeName = function (name) { if (allUppercase.test(name)) { return name.toLowerCase(); } return name; }; if (node != null && node.nodeType == 1) { //ELEMENT_NODE // add attributes for (var i = 0; i < node.attributes.length; i++) { var attribute = node.attributes[i]; var nodeName = normalizeAttributeName(attribute.nodeName); this.attributes[nodeName] = new svg.Property(nodeName, attribute.value); } this.addStylesFromStyleDefinition(); // add inline styles if (this.attribute('style').hasValue()) { var styles = this.attribute('style').value.split(';'); for (var i = 0; i < styles.length; i++) { if (svg.trim(styles[i]) != '') { var style = styles[i].split(':'); var name = svg.trim(style[0]); var value = svg.trim(style[1]); this.styles[name] = new svg.Property(name, value); } } } // add id if (this.attribute('id').hasValue()) { if (svg.Definitions[this.attribute('id').value] == null) { svg.Definitions[this.attribute('id').value] = this; } } // add children for (var i = 0; i < node.childNodes.length; i++) { var childNode = node.childNodes[i]; if (childNode.nodeType == 1) this.addChild(childNode, true); //ELEMENT_NODE if (this.captureTextNodes && (childNode.nodeType == 3 || childNode.nodeType == 4)) { var text = childNode.value || childNode.text || childNode.textContent || ''; if (svg.compressSpaces(text) != '') { this.addChild(new svg.Element.tspan(childNode), false); // TEXT_NODE } } } } }; svg.Element.RenderedElementBase = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.calculateOpacity = function() { var opacity = 1.0; var el = this; while (el != null) { var opacityStyle = el.style('opacity', false, true); // no ancestors on style call if (opacityStyle.hasValue()) { opacity = opacity * opacityStyle.numValue(); } el = el.parent; } return opacity; }; this.setContext = function (ctx, fromMeasure) { if (!fromMeasure) { // causes stack overflow when measuring text with gradients // fill if (this.style('fill').isUrlDefinition()) { var fs = this.style('fill').getFillStyleDefinition(this, this.style('fill-opacity')); if (fs != null) ctx.fillStyle = fs; } else if (this.style('fill').hasValue()) { var fillStyle = this.style('fill'); if (fillStyle.value == 'currentColor') fillStyle.value = this.style('color').value; if (fillStyle.value != 'inherit') ctx.fillStyle = (fillStyle.value == 'none' ? 'rgba(0,0,0,0)' : fillStyle.value); } if (this.style('fill-opacity').hasValue()) { var fillStyle = new svg.Property('fill', ctx.fillStyle); fillStyle = fillStyle.addOpacity(this.style('fill-opacity')); ctx.fillStyle = fillStyle.value; } // stroke if (this.style('stroke').isUrlDefinition()) { var fs = this.style('stroke').getFillStyleDefinition(this, this.style('stroke-opacity')); if (fs != null) ctx.strokeStyle = fs; } else if (this.style('stroke').hasValue()) { var strokeStyle = this.style('stroke'); if (strokeStyle.value == 'currentColor') strokeStyle.value = this.style('color').value; if (strokeStyle.value != 'inherit') ctx.strokeStyle = (strokeStyle.value == 'none' ? 'rgba(0,0,0,0)' : strokeStyle.value); } if (this.style('stroke-opacity').hasValue()) { var strokeStyle = new svg.Property('stroke', ctx.strokeStyle); strokeStyle = strokeStyle.addOpacity(this.style('stroke-opacity')); ctx.strokeStyle = strokeStyle.value; } if (this.style('stroke-width').hasValue()) { var newLineWidth = this.style('stroke-width').toPixels(); ctx.lineWidth = newLineWidth == 0 ? 0.001 : newLineWidth; // browsers don't respect 0 } if (this.style('stroke-linecap').hasValue()) ctx.lineCap = this.style('stroke-linecap').value; if (this.style('stroke-linejoin').hasValue()) ctx.lineJoin = this.style('stroke-linejoin').value; if (this.style('stroke-miterlimit').hasValue()) ctx.miterLimit = this.style('stroke-miterlimit').value; if (this.style('paint-order').hasValue()) ctx.paintOrder = this.style('paint-order').value; if (this.style('stroke-dasharray').hasValue() && this.style('stroke-dasharray').value != 'none') { var gaps = svg.ToNumberArray(this.style('stroke-dasharray').value); if (typeof ctx.setLineDash != 'undefined') { ctx.setLineDash(gaps); } else if (typeof ctx.webkitLineDash != 'undefined') { ctx.webkitLineDash = gaps; } else if (typeof ctx.mozDash != 'undefined' && !(gaps.length == 1 && gaps[0] == 0)) { ctx.mozDash = gaps; } var offset = this.style('stroke-dashoffset').toPixels(); if (typeof ctx.lineDashOffset != 'undefined') { ctx.lineDashOffset = offset; } else if (typeof ctx.webkitLineDashOffset != 'undefined') { ctx.webkitLineDashOffset = offset; } else if (typeof ctx.mozDashOffset != 'undefined') { ctx.mozDashOffset = offset; } } } // font if (typeof ctx.font != 'undefined') { if (this.style('font').hasValue()) { ctx.font = this.style('font').value; } else { ctx.font = svg.Font.CreateFont( this.style('font-style').value, this.style('font-variant').value, this.style('font-weight').value, this.style('font-size').hasValue() ? this.style('font-size').toPixels() + 'px' : '', this.style('font-family').value).toString(); // update em size if needed var currentFontSize = this.style('font-size', false, false); if (currentFontSize.isPixels()) { svg.emSize = currentFontSize.toPixels(); } } } // transform if (this.style('transform', false, true).hasValue()) { var transform = new svg.Transform(this.style('transform', false, true).value); transform.apply(ctx); } // clip if (this.style('clip-path', false, true).hasValue()) { var clip = this.style('clip-path', false, true).getDefinition(); if (clip != null) clip.apply(ctx); } // opacity ctx.globalAlpha = this.calculateOpacity(); }; }; svg.Element.RenderedElementBase.prototype = new svg.Element.ElementBase; svg.Element.PathElementBase = function (node) { this.base = svg.Element.RenderedElementBase; this.base(node); this.path = function (ctx) { if (ctx != null) ctx.beginPath(); return new svg.BoundingBox(); }; this.renderChildren = function (ctx) { this.path(ctx); svg.Mouse.checkPath(this, ctx); if (ctx.fillStyle != '') { if (this.style('fill-rule').valueOrDefault('inherit') != 'inherit') { ctx.fill(this.style('fill-rule').value); } else { ctx.fill(); } } if (ctx.strokeStyle != '') ctx.stroke(); var markers = this.getMarkers(); if (markers != null) { if (this.style('marker-start').isUrlDefinition()) { var marker = this.style('marker-start').getDefinition(); marker.render(ctx, markers[0][0], markers[0][1]); } if (this.style('marker-mid').isUrlDefinition()) { var marker = this.style('marker-mid').getDefinition(); for (var i = 1; i < markers.length - 1; i++) { marker.render(ctx, markers[i][0], markers[i][1]); } } if (this.style('marker-end').isUrlDefinition()) { var marker = this.style('marker-end').getDefinition(); marker.render(ctx, markers[markers.length - 1][0], markers[markers.length - 1][1]); } } }; this.getBoundingBox = function () { return this.path(); }; this.getMarkers = function () { return null; }; }; svg.Element.PathElementBase.prototype = new svg.Element.RenderedElementBase; svg.SetDefaults = function (ctx) { // initial values and defaults ctx.strokeStyle = 'rgba(0,0,0,0)'; ctx.lineCap = 'butt'; ctx.lineJoin = 'miter'; ctx.miterLimit = 4; }; // svg element svg.Element.svg = function (node) { this.base = svg.Element.RenderedElementBase; this.base(node); this.baseClearContext = this.clearContext; this.clearContext = function (ctx) { this.baseClearContext(ctx); svg.ViewPort.RemoveCurrent(); }; this.baseSetContext = this.setContext; this.setContext = function (ctx) { svg.SetDefaults(ctx); if (ctx.canvas.style && typeof ctx.font != 'undefined' && typeof windowEnv.getComputedStyle != 'undefined') { ctx.font = windowEnv.getComputedStyle(ctx.canvas).getPropertyValue('font'); var fontSize = new svg.Property('fontSize', svg.Font.Parse(ctx.font).fontSize); if (fontSize.hasValue()) svg.rootEmSize = svg.emSize = fontSize.toPixels('y'); } this.baseSetContext(ctx); // create new view port if (!this.attribute('x').hasValue()) this.attribute('x', true).value = 0; if (!this.attribute('y').hasValue()) this.attribute('y', true).value = 0; ctx.translate(this.attribute('x').toPixels('x'), this.attribute('y').toPixels('y')); var width = svg.ViewPort.width(); var height = svg.ViewPort.height(); if (!this.attribute('width').hasValue()) this.attribute('width', true).value = '100%'; if (!this.attribute('height').hasValue()) this.attribute('height', true).value = '100%'; if (typeof this.root == 'undefined') { width = this.attribute('width').toPixels('x'); height = this.attribute('height').toPixels('y'); var x = 0; var y = 0; if (this.attribute('refX').hasValue() && this.attribute('refY').hasValue()) { x = -this.attribute('refX').toPixels('x'); y = -this.attribute('refY').toPixels('y'); } if (this.attribute('overflow').valueOrDefault('hidden') != 'visible') { ctx.beginPath(); ctx.moveTo(x, y); ctx.lineTo(width, y); ctx.lineTo(width, height); ctx.lineTo(x, height); ctx.closePath(); ctx.clip(); } } svg.ViewPort.SetCurrent(width, height); // viewbox if (this.attribute('viewBox').hasValue()) { var viewBox = svg.ToNumberArray(this.attribute('viewBox').value); var minX = viewBox[0]; var minY = viewBox[1]; width = viewBox[2]; height = viewBox[3]; svg.AspectRatio(ctx, this.attribute('preserveAspectRatio').value, svg.ViewPort.width(), width, svg.ViewPort.height(), height, minX, minY, this.attribute('refX').value, this.attribute('refY').value); svg.ViewPort.RemoveCurrent(); svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]); } }; }; svg.Element.svg.prototype = new svg.Element.RenderedElementBase; // rect element svg.Element.rect = function (node) { this.base = svg.Element.PathElementBase; this.base(node); this.path = function (ctx) { var x = this.attribute('x').toPixels('x'); var y = this.attribute('y').toPixels('y'); var width = this.attribute('width').toPixels('x'); var height = this.attribute('height').toPixels('y'); var rx = this.attribute('rx').toPixels('x'); var ry = this.attribute('ry').toPixels('y'); if (this.attribute('rx').hasValue() && !this.attribute('ry').hasValue()) ry = rx; if (this.attribute('ry').hasValue() && !this.attribute('rx').hasValue()) rx = ry; rx = Math.min(rx, width / 2.0); ry = Math.min(ry, height / 2.0); if (ctx != null) { var KAPPA = 4 * ((Math.sqrt(2) - 1) / 3); ctx.beginPath(); // always start the path so we don't fill prior paths if (height > 0 && width > 0) { ctx.moveTo(x + rx, y); ctx.lineTo(x + width - rx, y); ctx.bezierCurveTo(x + width - rx + (KAPPA * rx), y, x + width, y + ry - (KAPPA * ry), x + width, y + ry); ctx.lineTo(x + width, y + height - ry); ctx.bezierCurveTo(x + width, y + height - ry + (KAPPA * ry), x + width - rx + (KAPPA * rx), y + height, x + width - rx, y + height); ctx.lineTo(x + rx, y + height); ctx.bezierCurveTo(x + rx - (KAPPA * rx), y + height, x, y + height - ry + (KAPPA * ry), x, y + height - ry); ctx.lineTo(x, y + ry); ctx.bezierCurveTo(x, y + ry - (KAPPA * ry), x + rx - (KAPPA * rx), y, x + rx, y); ctx.closePath(); } } return new svg.BoundingBox(x, y, x + width, y + height); }; }; svg.Element.rect.prototype = new svg.Element.PathElementBase; // circle element svg.Element.circle = function (node) { this.base = svg.Element.PathElementBase; this.base(node); this.path = function (ctx) { var cx = this.attribute('cx').toPixels('x'); var cy = this.attribute('cy').toPixels('y'); var r = this.attribute('r').toPixels(); if (ctx != null && r > 0) { ctx.beginPath(); ctx.arc(cx, cy, r, 0, Math.PI * 2, false); ctx.closePath(); } return new svg.BoundingBox(cx - r, cy - r, cx + r, cy + r); }; }; svg.Element.circle.prototype = new svg.Element.PathElementBase; // ellipse element svg.Element.ellipse = function (node) { this.base = svg.Element.PathElementBase; this.base(node); this.path = function (ctx) { var KAPPA = 4 * ((Math.sqrt(2) - 1) / 3); var rx = this.attribute('rx').toPixels('x'); var ry = this.attribute('ry').toPixels('y'); var cx = this.attribute('cx').toPixels('x'); var cy = this.attribute('cy').toPixels('y'); if (ctx != null) { ctx.beginPath(); ctx.moveTo(cx + rx, cy); ctx.bezierCurveTo(cx + rx, cy + (KAPPA * ry), cx + (KAPPA * rx), cy + ry, cx, cy + ry); ctx.bezierCurveTo(cx - (KAPPA * rx), cy + ry, cx - rx, cy + (KAPPA * ry), cx - rx, cy); ctx.bezierCurveTo(cx - rx, cy - (KAPPA * ry), cx - (KAPPA * rx), cy - ry, cx, cy - ry); ctx.bezierCurveTo(cx + (KAPPA * rx), cy - ry, cx + rx, cy - (KAPPA * ry), cx + rx, cy); ctx.closePath(); } return new svg.BoundingBox(cx - rx, cy - ry, cx + rx, cy + ry); }; }; svg.Element.ellipse.prototype = new svg.Element.PathElementBase; // line element svg.Element.line = function (node) { this.base = svg.Element.PathElementBase; this.base(node); this.getPoints = function () { return [ new svg.Point(this.attribute('x1').toPixels('x'), this.attribute('y1').toPixels('y')), new svg.Point(this.attribute('x2').toPixels('x'), this.attribute('y2').toPixels('y')) ]; }; this.path = function (ctx) { var points = this.getPoints(); if (ctx != null) { ctx.beginPath(); ctx.moveTo(points[0].x, points[0].y); ctx.lineTo(points[1].x, points[1].y); } return new svg.BoundingBox(points[0].x, points[0].y, points[1].x, points[1].y); }; this.getMarkers = function () { var points = this.getPoints(); var a = points[0].angleTo(points[1]); return [ [points[0], a], [points[1], a] ]; }; }; svg.Element.line.prototype = new svg.Element.PathElementBase; // polyline element svg.Element.polyline = function (node) { this.base = svg.Element.PathElementBase; this.base(node); this.points = svg.CreatePath(this.attribute('points').value); this.path = function (ctx) { var bb = new svg.BoundingBox(this.points[0].x, this.points[0].y); if (ctx != null) { ctx.beginPath(); ctx.moveTo(this.points[0].x, this.points[0].y); } for (var i = 1; i < this.points.length; i++) { bb.addPoint(this.points[i].x, this.points[i].y); if (ctx != null) ctx.lineTo(this.points[i].x, this.points[i].y); } return bb; }; this.getMarkers = function () { var markers = []; for (var i = 0; i < this.points.length - 1; i++) { markers.push([this.points[i], this.points[i].angleTo(this.points[i + 1])]); } if (markers.length > 0) { markers.push([this.points[this.points.length - 1], markers[markers.length - 1][1]]); } return markers; }; }; svg.Element.polyline.prototype = new svg.Element.PathElementBase; // polygon element svg.Element.polygon = function (node) { this.base = svg.Element.polyline; this.base(node); this.basePath = this.path; this.path = function (ctx) { var bb = this.basePath(ctx); if (ctx != null) { ctx.lineTo(this.points[0].x, this.points[0].y); ctx.closePath(); } return bb; }; }; svg.Element.polygon.prototype = new svg.Element.polyline; // path element svg.Element.path = function (node) { this.base = svg.Element.PathElementBase; this.base(node); var d = this.attribute('d').value; // TODO: convert to real lexer based on http://www.w3.org/TR/SVG11/paths.html#PathDataBNF d = d.replace(/,/gm, ' '); // get rid of all commas // As the end of a match can also be the start of the next match, we need to run this replace twice. for (var i = 0; i < 2; i++) d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([^\s])/gm, '$1 $2'); // suffix commands with spaces d = d.replace(/([^\s])([MmZzLlHhVvCcSsQqTtAa])/gm, '$1 $2'); // prefix commands with spaces d = d.replace(/([0-9])([+\-])/gm, '$1 $2'); // separate digits on +- signs // Again, we need to run this twice to find all occurances for (var i = 0; i < 2; i++) d = d.replace(/(\.[0-9]*)(\.)/gm, '$1 $2'); // separate digits when they start with a comma d = d.replace(/([Aa](\s+[0-9]+){3})\s+([01])\s*([01])/gm, '$1 $3 $4 '); // shorthand elliptical arc path syntax d = svg.compressSpaces(d); // compress multiple spaces d = svg.trim(d); this.PathParser = new (function (d) { this.tokens = d.split(' '); this.reset = function () { this.i = -1; this.command = ''; this.previousCommand = ''; this.start = new svg.Point(0, 0); this.control = new svg.Point(0, 0); this.current = new svg.Point(0, 0); this.points = []; this.angles = []; }; this.isEnd = function () { return this.i >= this.tokens.length - 1; }; this.isCommandOrEnd = function () { if (this.isEnd()) return true; return this.tokens[this.i + 1].match(/^[A-Za-z]$/) != null; }; this.isRelativeCommand = function () { switch (this.command) { case 'm': case 'l': case 'h': case 'v': case 'c': case 's': case 'q': case 't': case 'a': case 'z': return true; } return false; }; this.getToken = function () { this.i++; return this.tokens[this.i]; }; this.getScalar = function () { return parseFloat(this.getToken()); }; this.nextCommand = function () { this.previousCommand = this.command; this.command = this.getToken(); }; this.getPoint = function () { var p = new svg.Point(this.getScalar(), this.getScalar()); return this.makeAbsolute(p); }; this.getAsControlPoint = function () { var p = this.getPoint(); this.control = p; return p; }; this.getAsCurrentPoint = function () { var p = this.getPoint(); this.current = p; return p; }; this.getReflectedControlPoint = function () { if (this.previousCommand.toLowerCase() != 'c' && this.previousCommand.toLowerCase() != 's' && this.previousCommand.toLowerCase() != 'q' && this.previousCommand.toLowerCase() != 't') { return this.current; } // reflect point var p = new svg.Point(2 * this.current.x - this.control.x, 2 * this.current.y - this.control.y); return p; }; this.makeAbsolute = function (p) { if (this.isRelativeCommand()) { p.x += this.current.x; p.y += this.current.y; } return p; }; this.addMarker = function (p, from, priorTo) { // if the last angle isn't filled in because we didn't have this point yet ... if (priorTo != null && this.angles.length > 0 && this.angles[this.angles.length - 1] == null) { this.angles[this.angles.length - 1] = this.points[this.points.length - 1].angleTo(priorTo); } this.addMarkerAngle(p, from == null ? null : from.angleTo(p)); }; this.addMarkerAngle = function (p, a) { this.points.push(p); this.angles.push(a); }; this.getMarkerPoints = function () { return this.points; }; this.getMarkerAngles = function () { for (var i = 0; i < this.angles.length; i++) { if (this.angles[i] == null) { for (var j = i + 1; j < this.angles.length; j++) { if (this.angles[j] != null) { this.angles[i] = this.angles[j]; break; } } } } return this.angles; }; })(d); this.path = function (ctx) { var pp = this.PathParser; pp.reset(); var bb = new svg.BoundingBox(); if (ctx != null) ctx.beginPath(); while (!pp.isEnd()) { pp.nextCommand(); switch (pp.command) { case 'M': case 'm': var p = pp.getAsCurrentPoint(); pp.addMarker(p); bb.addPoint(p.x, p.y); if (ctx != null) ctx.moveTo(p.x, p.y); pp.start = pp.current; while (!pp.isCommandOrEnd()) { var p = pp.getAsCurrentPoint(); pp.addMarker(p, pp.start); bb.addPoint(p.x, p.y); if (ctx != null) ctx.lineTo(p.x, p.y); } break; case 'L': case 'l': while (!pp.isCommandOrEnd()) { var c = pp.current; var p = pp.getAsCurrentPoint(); pp.addMarker(p, c); bb.addPoint(p.x, p.y); if (ctx != null) ctx.lineTo(p.x, p.y); } break; case 'H': case 'h': while (!pp.isCommandOrEnd()) { var newP = new svg.Point((pp.isRelativeCommand() ? pp.current.x : 0) + pp.getScalar(), pp.current.y); pp.addMarker(newP, pp.current); pp.current = newP; bb.addPoint(pp.current.x, pp.current.y); if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y); } break; case 'V': case 'v': while (!pp.isCommandOrEnd()) { var newP = new svg.Point(pp.current.x, (pp.isRelativeCommand() ? pp.current.y : 0) + pp.getScalar()); pp.addMarker(newP, pp.current); pp.current = newP; bb.addPoint(pp.current.x, pp.current.y); if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y); } break; case 'C': case 'c': while (!pp.isCommandOrEnd()) { var curr = pp.current; var p1 = pp.getPoint(); var cntrl = pp.getAsControlPoint(); var cp = pp.getAsCurrentPoint(); pp.addMarker(cp, cntrl, p1); bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y); if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y); } break; case 'S': case 's': while (!pp.isCommandOrEnd()) { var curr = pp.current; var p1 = pp.getReflectedControlPoint(); var cntrl = pp.getAsControlPoint(); var cp = pp.getAsCurrentPoint(); pp.addMarker(cp, cntrl, p1); bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y); if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y); } break; case 'Q': case 'q': while (!pp.isCommandOrEnd()) { var curr = pp.current; var cntrl = pp.getAsControlPoint(); var cp = pp.getAsCurrentPoint(); pp.addMarker(cp, cntrl, cntrl); bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y); if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y); } break; case 'T': case 't': while (!pp.isCommandOrEnd()) { var curr = pp.current; var cntrl = pp.getReflectedControlPoint(); pp.control = cntrl; var cp = pp.getAsCurrentPoint(); pp.addMarker(cp, cntrl, cntrl); bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y); if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y); } break; case 'A': case 'a': while (!pp.isCommandOrEnd()) { var curr = pp.current; var rx = pp.getScalar(); var ry = pp.getScalar(); var xAxisRotation = pp.getScalar() * (Math.PI / 180.0); var largeArcFlag = pp.getScalar(); var sweepFlag = pp.getScalar(); var cp = pp.getAsCurrentPoint(); // Conversion from endpoint to center parameterization // http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes // x1', y1' var currp = new svg.Point( Math.cos(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.sin(xAxisRotation) * (curr.y - cp.y) / 2.0, -Math.sin(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.cos(xAxisRotation) * (curr.y - cp.y) / 2.0 ); // adjust radii var l = Math.pow(currp.x, 2) / Math.pow(rx, 2) + Math.pow(currp.y, 2) / Math.pow(ry, 2); if (l > 1) { rx *= Math.sqrt(l); ry *= Math.sqrt(l); } // cx', cy' var s = (largeArcFlag == sweepFlag ? -1 : 1) * Math.sqrt( ((Math.pow(rx, 2) * Math.pow(ry, 2)) - (Math.pow(rx, 2) * Math.pow(currp.y, 2)) - (Math.pow(ry, 2) * Math.pow(currp.x, 2))) / (Math.pow(rx, 2) * Math.pow(currp.y, 2) + Math.pow(ry, 2) * Math.pow(currp.x, 2)) ); if (isNaN(s)) s = 0; var cpp = new svg.Point(s * rx * currp.y / ry, s * -ry * currp.x / rx); // cx, cy var centp = new svg.Point( (curr.x + cp.x) / 2.0 + Math.cos(xAxisRotation) * cpp.x - Math.sin(xAxisRotation) * cpp.y, (curr.y + cp.y) / 2.0 + Math.sin(xAxisRotation) * cpp.x + Math.cos(xAxisRotation) * cpp.y ); // vector magnitude var m = function (v) { return Math.sqrt(Math.pow(v[0], 2) + Math.pow(v[1], 2)); }; // ratio between two vectors var r = function (u, v) { return (u[0] * v[0] + u[1] * v[1]) / (m(u) * m(v)) }; // angle between two vectors var a = function (u, v) { return (u[0] * v[1] < u[1] * v[0] ? -1 : 1) * Math.acos(r(u, v)); }; // initial angle var a1 = a([1, 0], [(currp.x - cpp.x) / rx, (currp.y - cpp.y) / ry]); // angle delta var u = [(currp.x - cpp.x) / rx, (currp.y - cpp.y) / ry]; var v = [(-currp.x - cpp.x) / rx, (-currp.y - cpp.y) / ry]; var ad = a(u, v); if (r(u, v) <= -1) ad = Math.PI; if (r(u, v) >= 1) ad = 0; // for markers var dir = 1 - sweepFlag ? 1.0 : -1.0; var ah = a1 + dir * (ad / 2.0); var halfWay = new svg.Point( centp.x + rx * Math.cos(ah), centp.y + ry * Math.sin(ah) ); pp.addMarkerAngle(halfWay, ah - dir * Math.PI / 2); pp.addMarkerAngle(cp, ah - dir * Math.PI); bb.addPoint(cp.x, cp.y); // TODO: this is too naive, make it better if (ctx != null && !isNaN(a1) && !isNaN(ad)) { var r = rx > ry ? rx : ry; var sx = rx > ry ? 1 : rx / ry; var sy = rx > ry ? ry / rx : 1; ctx.translate(centp.x, centp.y); ctx.rotate(xAxisRotation); ctx.scale(sx, sy); ctx.arc(0, 0, r, a1, a1 + ad, 1 - sweepFlag); ctx.scale(1 / sx, 1 / sy); ctx.rotate(-xAxisRotation); ctx.translate(-centp.x, -centp.y); } } break; case 'Z': case 'z': if (ctx != null) { // only close path if it is not a straight line if (bb.x1 !== bb.x2 && bb.y1 !== bb.y2) { ctx.closePath(); } } pp.current = pp.start; } } return bb; }; this.getMarkers = function () { var points = this.PathParser.getMarkerPoints(); var angles = this.PathParser.getMarkerAngles(); var markers = []; for (var i = 0; i < points.length; i++) { markers.push([points[i], angles[i]]); } return markers; }; }; svg.Element.path.prototype = new svg.Element.PathElementBase; // pattern element svg.Element.pattern = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.createPattern = function (ctx, element, parentOpacityProp) { var width = this.attribute('width').toPixels('x', true); var height = this.attribute('height').toPixels('y', true); // render me using a temporary svg element var tempSvg = new svg.Element.svg(); tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value); tempSvg.attributes['width'] = new svg.Property('width', width + 'px'); tempSvg.attributes['height'] = new svg.Property('height', height + 'px'); tempSvg.attributes['transform'] = new svg.Property('transform', this.attribute('patternTransform').value); tempSvg.children = this.children; var c = createCanvas(width, height); var cctx = c.getContext('2d'); if (this.attribute('x').hasValue() && this.attribute('y').hasValue()) { cctx.translate(this.attribute('x').toPixels('x', true), this.attribute('y').toPixels('y', true)); } if (parentOpacityProp.hasValue()) { this.styles['fill-opacity'] = parentOpacityProp; } else { delete this.styles['fill-opacity']; } // render 3x3 grid so when we transform there's no white space on edges for (var x = -1; x <= 1; x++) { for (var y = -1; y <= 1; y++) { cctx.save(); tempSvg.attributes['x'] = new svg.Property('x', x * c.width); tempSvg.attributes['y'] = new svg.Property('y', y * c.height); tempSvg.render(cctx); cctx.restore(); } } var pattern = ctx.createPattern(c, 'repeat'); return pattern; }; }; svg.Element.pattern.prototype = new svg.Element.ElementBase; // marker element svg.Element.marker = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.baseRender = this.render; this.render = function (ctx, point, angle) { if (!point) { return; } ctx.translate(point.x, point.y); if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(angle); if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(ctx.lineWidth, ctx.lineWidth); ctx.save(); // render me using a temporary svg element var tempSvg = new svg.Element.svg(); tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value); tempSvg.attributes['refX'] = new svg.Property('refX', this.attribute('refX').value); tempSvg.attributes['refY'] = new svg.Property('refY', this.attribute('refY').value); tempSvg.attributes['width'] = new svg.Property('width', this.attribute('markerWidth').value); tempSvg.attributes['height'] = new svg.Property('height', this.attribute('markerHeight').value); tempSvg.attributes['fill'] = new svg.Property('fill', this.attribute('fill').valueOrDefault('black')); tempSvg.attributes['stroke'] = new svg.Property('stroke', this.attribute('stroke').valueOrDefault('none')); tempSvg.children = this.children; tempSvg.render(ctx); ctx.restore(); if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(1 / ctx.lineWidth, 1 / ctx.lineWidth); if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(-angle); ctx.translate(-point.x, -point.y); }; }; svg.Element.marker.prototype = new svg.Element.ElementBase; // definitions element svg.Element.defs = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.render = function (/* ctx */) { // NOOP }; }; svg.Element.defs.prototype = new svg.Element.ElementBase; // base for gradients svg.Element.GradientBase = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.stops = []; for (var i = 0; i < this.children.length; i++) { var child = this.children[i]; if (child.type == 'stop') this.stops.push(child); } this.getGradient = function () { // OVERRIDE ME! }; this.gradientUnits = function () { return this.attribute('gradientUnits').valueOrDefault('objectBoundingBox'); }; this.attributesToInherit = ['gradientUnits']; this.inheritStopContainer = function (stopsContainer) { for (var i = 0; i < this.attributesToInherit.length; i++) { var attributeToInherit = this.attributesToInherit[i]; if (!this.attribute(attributeToInherit).hasValue() && stopsContainer.attribute(attributeToInherit).hasValue()) { this.attribute(attributeToInherit, true).value = stopsContainer.attribute(attributeToInherit).value; } } }; this.createGradient = function (ctx, element, parentOpacityProp) { var stopsContainer = this; if (this.getHrefAttribute().hasValue()) { stopsContainer = this.getHrefAttribute().getDefinition(); this.inheritStopContainer(stopsContainer); } var addParentOpacity = function (color) { if (parentOpacityProp.hasValue()) { var p = new svg.Property('color', color); return p.addOpacity(parentOpacityProp).value; } return color; }; var g = this.getGradient(ctx, element); if (g == null) return addParentOpacity(stopsContainer.stops[stopsContainer.stops.length - 1].color); for (var i = 0; i < stopsContainer.stops.length; i++) { g.addColorStop(stopsContainer.stops[i].offset, addParentOpacity(stopsContainer.stops[i].color)); } if (this.attribute('gradientTransform').hasValue()) { // render as transformed pattern on temporary canvas var rootView = svg.ViewPort.viewPorts[0]; var rect = new svg.Element.rect(); rect.attributes['x'] = new svg.Property('x', -svg.MAX_VIRTUAL_PIXELS / 3.0); rect.attributes['y'] = new svg.Property('y', -svg.MAX_VIRTUAL_PIXELS / 3.0); rect.attributes['width'] = new svg.Property('width', svg.MAX_VIRTUAL_PIXELS); rect.attributes['height'] = new svg.Property('height', svg.MAX_VIRTUAL_PIXELS); var group = new svg.Element.g(); group.attributes['transform'] = new svg.Property('transform', this.attribute('gradientTransform').value); group.children = [rect]; var tempSvg = new svg.Element.svg(); tempSvg.attributes['x'] = new svg.Property('x', 0); tempSvg.attributes['y'] = new svg.Property('y', 0); tempSvg.attributes['width'] = new svg.Property('width', rootView.width); tempSvg.attributes['height'] = new svg.Property('height', rootView.height); tempSvg.children = [group]; var c = createCanvas(rootView.width, rootView.height); var tempCtx = c.getContext('2d'); tempCtx.fillStyle = g; tempSvg.render(tempCtx); return tempCtx.createPattern(c, 'no-repeat'); } return g; }; }; svg.Element.GradientBase.prototype = new svg.Element.ElementBase; // linear gradient element svg.Element.linearGradient = function (node) { this.base = svg.Element.GradientBase; this.base(node); this.attributesToInherit.push('x1'); this.attributesToInherit.push('y1'); this.attributesToInherit.push('x2'); this.attributesToInherit.push('y2'); this.getGradient = function (ctx, element) { var bb = this.gradientUnits() == 'objectBoundingBox' ? element.getBoundingBox(ctx) : null; if (!this.attribute('x1').hasValue() && !this.attribute('y1').hasValue() && !this.attribute('x2').hasValue() && !this.attribute('y2').hasValue()) { this.attribute('x1', true).value = 0; this.attribute('y1', true).value = 0; this.attribute('x2', true).value = 1; this.attribute('y2', true).value = 0; } var x1 = (this.gradientUnits() == 'objectBoundingBox' ? bb.x() + bb.width() * this.attribute('x1').numValue() : this.attribute('x1').toPixels('x')); var y1 = (this.gradientUnits() == 'objectBoundingBox' ? bb.y() + bb.height() * this.attribute('y1').numValue() : this.attribute('y1').toPixels('y')); var x2 = (this.gradientUnits() == 'objectBoundingBox' ? bb.x() + bb.width() * this.attribute('x2').numValue() : this.attribute('x2').toPixels('x')); var y2 = (this.gradientUnits() == 'objectBoundingBox' ? bb.y() + bb.height() * this.attribute('y2').numValue() : this.attribute('y2').toPixels('y')); if (x1 == x2 && y1 == y2) return null; return ctx.createLinearGradient(x1, y1, x2, y2); }; }; svg.Element.linearGradient.prototype = new svg.Element.GradientBase; // radial gradient element svg.Element.radialGradient = function (node) { this.base = svg.Element.GradientBase; this.base(node); this.attributesToInherit.push('cx'); this.attributesToInherit.push('cy'); this.attributesToInherit.push('r'); this.attributesToInherit.push('fx'); this.attributesToInherit.push('fy'); this.attributesToInherit.push('fr'); this.getGradient = function (ctx, element) { var bb = element.getBoundingBox(ctx); if (!this.attribute('cx').hasValue()) this.attribute('cx', true).value = '50%'; if (!this.attribute('cy').hasValue()) this.attribute('cy', true).value = '50%'; if (!this.attribute('r').hasValue()) this.attribute('r', true).value = '50%'; var cx = (this.gradientUnits() == 'objectBoundingBox' ? bb.x() + bb.width() * this.attribute('cx').numValue() : this.attribute('cx').toPixels('x')); var cy = (this.gradientUnits() == 'objectBoundingBox' ? bb.y() + bb.height() * this.attribute('cy').numValue() : this.attribute('cy').toPixels('y')); var fx = cx; var fy = cy; if (this.attribute('fx').hasValue()) { fx = (this.gradientUnits() == 'objectBoundingBox' ? bb.x() + bb.width() * this.attribute('fx').numValue() : this.attribute('fx').toPixels('x')); } if (this.attribute('fy').hasValue()) { fy = (this.gradientUnits() == 'objectBoundingBox' ? bb.y() + bb.height() * this.attribute('fy').numValue() : this.attribute('fy').toPixels('y')); } var r = (this.gradientUnits() == 'objectBoundingBox' ? (bb.width() + bb.height()) / 2.0 * this.attribute('r').numValue() : this.attribute('r').toPixels()); var fr = this.attribute('fr').toPixels(); return ctx.createRadialGradient(fx, fy, fr, cx, cy, r); }; }; svg.Element.radialGradient.prototype = new svg.Element.GradientBase; // gradient stop element svg.Element.stop = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.offset = this.attribute('offset').numValue(); if (this.offset < 0) this.offset = 0; if (this.offset > 1) this.offset = 1; var stopColor = this.style('stop-color', true); if (stopColor.value === '') stopColor.value = '#000'; if (this.style('stop-opacity').hasValue()) stopColor = stopColor.addOpacity(this.style('stop-opacity')); this.color = stopColor.value; }; svg.Element.stop.prototype = new svg.Element.ElementBase; // animation base element svg.Element.AnimateBase = function (node) { this.base = svg.Element.ElementBase; this.base(node); svg.Animations.push(this); this.duration = 0.0; this.begin = this.attribute('begin').toMilliseconds(); this.maxDuration = this.begin + this.attribute('dur').toMilliseconds(); this.getProperty = function () { var attributeType = this.attribute('attributeType').value; var attributeName = this.attribute('attributeName').value; if (attributeType == 'CSS') { return this.parent.style(attributeName, true); } return this.parent.attribute(attributeName, true); }; this.initialValue = null; this.initialUnits = ''; this.removed = false; this.calcValue = function () { // OVERRIDE ME! return ''; }; this.update = function (delta) { // set initial value if (this.initialValue == null) { this.initialValue = this.getProperty().value; this.initialUnits = this.getProperty().getUnits(); } // if we're past the end time if (this.duration > this.maxDuration) { // loop for indefinitely repeating animations if (this.attribute('repeatCount').value == 'indefinite' || this.attribute('repeatDur').value == 'indefinite') { this.duration = 0.0; } else if (this.attribute('fill').valueOrDefault('remove') == 'freeze' && !this.frozen) { this.frozen = true; this.parent.animationFrozen = true; this.parent.animationFrozenValue = this.getProperty().value; } else if (this.attribute('fill').valueOrDefault('remove') == 'remove' && !this.removed) { this.removed = true; this.getProperty().value = this.parent.animationFrozen ? this.parent.animationFrozenValue : this.initialValue; return true; } return false; } this.duration = this.duration + delta; // if we're past the begin time var updated = false; if (this.begin < this.duration) { var newValue = this.calcValue(); // tween if (this.attribute('type').hasValue()) { // for transform, etc. var type = this.attribute('type').value; newValue = type + '(' + newValue + ')'; } this.getProperty().value = newValue; updated = true; } return updated; }; this.from = this.attribute('from'); this.to = this.attribute('to'); this.values = this.attribute('values'); if (this.values.hasValue()) this.values.value = this.values.value.split(';'); // fraction of duration we've covered this.progress = function () { var ret = { progress: (this.duration - this.begin) / (this.maxDuration - this.begin) }; if (this.values.hasValue()) { var p = ret.progress * (this.values.value.length - 1); var lb = Math.floor(p), ub = Math.ceil(p); ret.from = new svg.Property('from', parseFloat(this.values.value[lb])); ret.to = new svg.Property('to', parseFloat(this.values.value[ub])); ret.progress = (p - lb) / (ub - lb); } else { ret.from = this.from; ret.to = this.to; } return ret; }; }; svg.Element.AnimateBase.prototype = new svg.Element.ElementBase; // animate element svg.Element.animate = function (node) { this.base = svg.Element.AnimateBase; this.base(node); this.calcValue = function () { var p = this.progress(); // tween value linearly var newValue = p.from.numValue() + (p.to.numValue() - p.from.numValue()) * p.progress; if (this.initialUnits === '%') { newValue *= 100.0; // numValue() returns 0-1 whereas properties are 0-100 } return newValue + this.initialUnits; }; }; svg.Element.animate.prototype = new svg.Element.AnimateBase; // animate color element svg.Element.animateColor = function (node) { this.base = svg.Element.AnimateBase; this.base(node); this.calcValue = function () { var p = this.progress(); var from = new rgbcolor(p.from.value); var to = new rgbcolor(p.to.value); if (from.ok && to.ok) { // tween color linearly var r = from.r + (to.r - from.r) * p.progress; var g = from.g + (to.g - from.g) * p.progress; var b = from.b + (to.b - from.b) * p.progress; return 'rgb(' + parseInt(r, 10) + ',' + parseInt(g, 10) + ',' + parseInt(b, 10) + ')'; } return this.attribute('from').value; }; }; svg.Element.animateColor.prototype = new svg.Element.AnimateBase; // animate transform element svg.Element.animateTransform = function (node) { this.base = svg.Element.AnimateBase; this.base(node); this.calcValue = function () { var p = this.progress(); // tween value linearly var from = svg.ToNumberArray(p.from.value); var to = svg.ToNumberArray(p.to.value); var newValue = ''; for (var i = 0; i < from.length; i++) { newValue += from[i] + (to[i] - from[i]) * p.progress + ' '; } return newValue; }; }; svg.Element.animateTransform.prototype = new svg.Element.animate; // font element svg.Element.font = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.horizAdvX = this.attribute('horiz-adv-x').numValue(); this.isRTL = false; this.isArabic = false; this.fontFace = null; this.missingGlyph = null; this.glyphs = []; for (var i = 0; i < this.children.length; i++) { var child = this.children[i]; if (child.type == 'font-face') { this.fontFace = child; if (child.style('font-family').hasValue()) { svg.Definitions[child.style('font-family').value] = this; } } else if (child.type == 'missing-glyph') this.missingGlyph = child; else if (child.type == 'glyph') { if (child.arabicForm != '') { this.isRTL = true; this.isArabic = true; if (typeof this.glyphs[child.unicode] == 'undefined') this.glyphs[child.unicode] = []; this.glyphs[child.unicode][child.arabicForm] = child; } else { this.glyphs[child.unicode] = child; } } } this.render = function(/* ctx */) { // NO RENDER }; }; svg.Element.font.prototype = new svg.Element.ElementBase; // font-face element svg.Element.fontface = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.ascent = this.attribute('ascent').value; this.descent = this.attribute('descent').value; this.unitsPerEm = this.attribute('units-per-em').numValue(); }; svg.Element.fontface.prototype = new svg.Element.ElementBase; // missing-glyph element svg.Element.missingglyph = function (node) { this.base = svg.Element.path; this.base(node); this.horizAdvX = 0; }; svg.Element.missingglyph.prototype = new svg.Element.path; // glyph element svg.Element.glyph = function (node) { this.base = svg.Element.path; this.base(node); this.horizAdvX = this.attribute('horiz-adv-x').numValue(); this.unicode = this.attribute('unicode').value; this.arabicForm = this.attribute('arabic-form').value; }; svg.Element.glyph.prototype = new svg.Element.path; // text element svg.Element.text = function (node) { this.captureTextNodes = true; this.base = svg.Element.RenderedElementBase; this.base(node); this.baseSetContext = this.setContext; this.setContext = function (ctx) { this.baseSetContext(ctx); var textBaseline = this.style('dominant-baseline').toTextBaseline(); if (textBaseline == null) textBaseline = this.style('alignment-baseline').toTextBaseline(); if (textBaseline != null) ctx.textBaseline = textBaseline; }; this.initializeCoordinates = function (ctx) { this.x = this.attribute('x').toPixels('x'); this.y = this.attribute('y').toPixels('y'); if (this.attribute('dx').hasValue()) this.x += this.attribute('dx').toPixels('x'); if (this.attribute('dy').hasValue()) this.y += this.attribute('dy').toPixels('y'); this.x += this.getAnchorDelta(ctx, this, 0); }; this.getBoundingBox = function (ctx) { this.initializeCoordinates(ctx); var bb = null; for (var i = 0; i < this.children.length; i++) { var childBB = this.getChildBoundingBox(ctx, this, this, i); if (bb == null) bb = childBB; else bb.addBoundingBox(childBB); } return bb; }; this.renderChildren = function (ctx) { this.initializeCoordinates(ctx); for (var i = 0; i < this.children.length; i++) { this.renderChild(ctx, this, this, i); } svg.Mouse.checkBoundingBox(this, this.getBoundingBox(ctx)); }; this.getAnchorDelta = function (ctx, parent, startI) { var textAnchor = this.style('text-anchor').valueOrDefault('start'); if (textAnchor != 'start') { var width = 0; for (var i = startI; i < parent.children.length; i++) { var child = parent.children[i]; if (i > startI && child.attribute('x').hasValue()) break; // new group width += child.measureTextRecursive(ctx); } return -1 * (textAnchor == 'end' ? width : width / 2.0); } return 0; }; this.adjustChildCoordinates = function(ctx, textParent, parent, i) { var child = parent.children[i]; if (typeof(child.measureText) !== 'function') { return child; } if (child.attribute('x').hasValue()) { child.x = child.attribute('x').toPixels('x') + textParent.getAnchorDelta(ctx, parent, i); // local text-anchor var textAnchor = child.attribute('text-anchor').valueOrDefault('start'); if (textAnchor !== 'start') { var width = child.measureTextRecursive(ctx); child.x += -1 * (textAnchor == 'end' ? width : width / 2.0); } if (child.attribute('dx').hasValue()) child.x += child.attribute('dx').toPixels('x'); } else { if (child.attribute('dx').hasValue()) textParent.x += child.attribute('dx').toPixels('x'); child.x = textParent.x; } textParent.x = child.x + child.measureText(ctx); if (child.attribute('y').hasValue()) { child.y = child.attribute('y').toPixels('y'); if (child.attribute('dy').hasValue()) child.y += child.attribute('dy').toPixels('y'); } else { if (child.attribute('dy').hasValue()) textParent.y += child.attribute('dy').toPixels('y'); child.y = textParent.y; } textParent.y = child.y; return child; }; this.getChildBoundingBox = function (ctx, textParent, parent, i) { var child = this.adjustChildCoordinates(ctx, textParent, parent, i); var bb = child.getBoundingBox(ctx); for (var i = 0; i < child.children.length; i++) { var childBB = textParent.getChildBoundingBox(ctx, textParent, child, i); bb.addBoundingBox(childBB); } return bb; }; this.renderChild = function (ctx, textParent, parent, i) { var child = this.adjustChildCoordinates(ctx, textParent, parent, i); child.render(ctx); for (var i = 0; i < child.children.length; i++) { textParent.renderChild(ctx, textParent, child, i); } }; }; svg.Element.text.prototype = new svg.Element.RenderedElementBase; // text base svg.Element.TextElementBase = function (node) { this.base = svg.Element.RenderedElementBase; this.base(node); this.getGlyph = function (font, text, i) { var c = text[i]; var glyph = null; if (font.isArabic) { var arabicForm = 'isolated'; if ((i == 0 || text[i - 1] == ' ') && i < text.length - 2 && text[i + 1] != ' ') arabicForm = 'terminal'; if (i > 0 && text[i - 1] != ' ' && i < text.length - 2 && text[i + 1] != ' ') arabicForm = 'medial'; if (i > 0 && text[i - 1] != ' ' && (i == text.length - 1 || text[i + 1] == ' ')) arabicForm = 'initial'; if (typeof font.glyphs[c] != 'undefined') { glyph = font.glyphs[c][arabicForm]; if (glyph == null && font.glyphs[c].type == 'glyph') glyph = font.glyphs[c]; } } else { glyph = font.glyphs[c]; } if (glyph == null) glyph = font.missingGlyph; return glyph; }; this.renderChildren = function (ctx) { var customFont = this.parent.style('font-family').getDefinition(); if (customFont != null) { var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize); var fontStyle = this.parent.style('font-style').valueOrDefault(svg.Font.Parse(svg.ctx.font).fontStyle); var text = this.getText(); if (customFont.isRTL) text = text.split('').reverse().join(''); var dx = svg.ToNumberArray(this.parent.attribute('dx').value); for (var i = 0; i < text.length; i++) { var glyph = this.getGlyph(customFont, text, i); var scale = fontSize / customFont.fontFace.unitsPerEm; ctx.translate(this.x, this.y); ctx.scale(scale, -scale); var lw = ctx.lineWidth; ctx.lineWidth = ctx.lineWidth * customFont.fontFace.unitsPerEm / fontSize; if (fontStyle == 'italic') ctx.transform(1, 0, .4, 1, 0, 0); glyph.render(ctx); if (fontStyle == 'italic') ctx.transform(1, 0, -.4, 1, 0, 0); ctx.lineWidth = lw; ctx.scale(1 / scale, -1 / scale); ctx.translate(-this.x, -this.y); this.x += fontSize * (glyph.horizAdvX || customFont.horizAdvX) / customFont.fontFace.unitsPerEm; if (typeof dx[i] != 'undefined' && !isNaN(dx[i])) { this.x += dx[i]; } } return; } if (ctx.paintOrder == 'stroke') { if (ctx.strokeStyle != '') ctx.strokeText(svg.compressSpaces(this.getText()), this.x, this.y); if (ctx.fillStyle != '') ctx.fillText(svg.compressSpaces(this.getText()), this.x, this.y); } else { if (ctx.fillStyle != '') ctx.fillText(svg.compressSpaces(this.getText()), this.x, this.y); if (ctx.strokeStyle != '') ctx.strokeText(svg.compressSpaces(this.getText()), this.x, this.y); } }; this.getText = function () { // OVERRIDE ME }; this.measureTextRecursive = function (ctx) { var width = this.measureText(ctx); for (var i = 0; i < this.children.length; i++) { width += this.children[i].measureTextRecursive(ctx); } return width; }; this.measureText = function (ctx) { var customFont = this.parent.style('font-family').getDefinition(); if (customFont != null) { var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize); var measure = 0; var text = this.getText(); if (customFont.isRTL) text = text.split('').reverse().join(''); var dx = svg.ToNumberArray(this.parent.attribute('dx').value); for (var i = 0; i < text.length; i++) { var glyph = this.getGlyph(customFont, text, i); measure += (glyph.horizAdvX || customFont.horizAdvX) * fontSize / customFont.fontFace.unitsPerEm; if (typeof dx[i] != 'undefined' && !isNaN(dx[i])) { measure += dx[i]; } } return measure; } var textToMeasure = svg.compressSpaces(this.getText()); if (!ctx.measureText) return textToMeasure.length * 10; ctx.save(); this.setContext(ctx, true); var width = ctx.measureText(textToMeasure).width; ctx.restore(); return width; }; this.getBoundingBox = function (ctx) { var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize); return new svg.BoundingBox(this.x, this.y - fontSize, this.x + this.measureText(ctx), this.y); }; }; svg.Element.TextElementBase.prototype = new svg.Element.RenderedElementBase; // tspan svg.Element.tspan = function (node) { this.captureTextNodes = true; this.base = svg.Element.TextElementBase; this.base(node); this.text = svg.compressSpaces(node.value || node.text || node.textContent || ''); this.getText = function () { // if this node has children, then they own the text if (this.children.length > 0) { return ''; } return this.text; }; }; svg.Element.tspan.prototype = new svg.Element.TextElementBase; // tref svg.Element.tref = function (node) { this.base = svg.Element.TextElementBase; this.base(node); this.getText = function () { var element = this.getHrefAttribute().getDefinition(); if (element != null) return element.children[0].getText(); }; }; svg.Element.tref.prototype = new svg.Element.TextElementBase; // a element svg.Element.a = function (node) { this.base = svg.Element.TextElementBase; this.base(node); this.hasText = node.childNodes.length > 0; for (var i = 0; i < node.childNodes.length; i++) { if (node.childNodes[i].nodeType != 3) this.hasText = false; } // this might contain text this.text = this.hasText ? node.childNodes[0].value || node.childNodes[0].data : ''; this.getText = function () { return this.text; }; this.baseRenderChildren = this.renderChildren; this.renderChildren = function (ctx) { if (this.hasText) { // render as text element this.baseRenderChildren(ctx); var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize); svg.Mouse.checkBoundingBox(this, new svg.BoundingBox(this.x, this.y - fontSize.toPixels('y'), this.x + this.measureText(ctx), this.y)); } else if (this.children.length > 0) { // render as temporary group var g = new svg.Element.g(); g.children = this.children; g.parent = this; g.render(ctx); } }; this.onclick = function () { windowEnv.open(this.getHrefAttribute().value); }; this.onmousemove = function () { svg.ctx.canvas.style.cursor = 'pointer'; }; }; svg.Element.a.prototype = new svg.Element.TextElementBase; // textPath svg.Element.textPath = function (node) { this.base = svg.Element.TextElementBase; this.base(node); var pathElement = this.getHrefAttribute().getDefinition(); this.text = svg.compressSpaces(node.value || node.text || node.textContent || ''); this.renderChildren = function (ctx) { this.setTextData(ctx); ctx.save(); var textDecoration = this.parent.style('text-decoration').value; var fontSize = this.fontSize(); var glyphInfo = this.glyphInfo; var fill = ctx.fillStyle; if (textDecoration === 'underline') { ctx.beginPath(); } for (var i = 0; i < glyphInfo.length; i++) { var p0 = glyphInfo[i].p0; var p1 = glyphInfo[i].p1; var partialText = glyphInfo[i].text; ctx.save(); ctx.translate(p0.x, p0.y); ctx.rotate(glyphInfo[i].rotation); if (ctx.fillStyle != '') ctx.fillText(svg.compressSpaces(partialText), 0, 0); if (ctx.strokeStyle != '') ctx.strokeText(svg.compressSpaces(partialText), 0, 0); ctx.restore(); if (textDecoration === 'underline') { if (i === 0) { ctx.moveTo(p0.x, p0.y + fontSize / 8); } ctx.lineTo(p1.x, p1.y + fontSize / 5); } //// To assist with debugging visually, uncomment following // // ctx.beginPath(); // if (i % 2) // ctx.strokeStyle = 'red'; // else // ctx.strokeStyle = 'green'; // ctx.moveTo(p0.x, p0.y); // ctx.lineTo(p1.x, p1.y); // ctx.stroke(); // ctx.closePath(); } if (textDecoration === 'underline') { ctx.lineWidth = fontSize / 20; ctx.strokeStyle = fill; ctx.stroke(); ctx.closePath(); } ctx.restore(); }; this.path = function (ctx) { var ca = this.dataArray; if (ctx != null) { ctx.beginPath(); } for (var n = 0; n < ca.length; n++) { var c = ca[n].command; var p = ca[n].points; switch (c) { case 'L': if (ctx != null) ctx.lineTo(p[0], p[1]); break; case 'M': if (ctx != null) ctx.moveTo(p[0], p[1]); break; case 'C': if (ctx != null) ctx.bezierCurveTo(p[0], p[1], p[2], p[3], p[4], p[5]); break; case 'Q': if (ctx != null) ctx.quadraticCurveTo(p[0], p[1], p[2], p[3]); break; case 'A': var cx = p[0], cy = p[1], rx = p[2], ry = p[3], theta = p[4], dTheta = p[5], psi = p[6], fs = p[7]; var r = (rx > ry) ? rx : ry; var scaleX = (rx > ry) ? 1 : rx / ry; var scaleY = (rx > ry) ? ry / rx : 1; if (ctx != null) { ctx.translate(cx, cy); ctx.rotate(psi); ctx.scale(scaleX, scaleY); ctx.arc(0, 0, r, theta, theta + dTheta, 1 - fs); ctx.scale(1 / scaleX, 1 / scaleY); ctx.rotate(-psi); ctx.translate(-cx, -cy); } break; case 'z': if (ctx != null) ctx.closePath(); break; } } }; this.getText = function () { return this.text; }; this.fontSize = function () { return this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize); }; this.measureText = function (ctx, text) { var customFont = this.parent.style('font-family').getDefinition(); text = text || this.getText(); if (customFont != null) { var fontSize = this.fontSize(); var measure = 0; if (customFont.isRTL) text = text.split("").reverse().join(""); var dx = svg.ToNumberArray(this.parent.attribute('dx').value); for (var i = 0; i < text.length; i++) { var glyph = this.getGlyph(customFont, text, i); measure += (glyph.horizAdvX || customFont.horizAdvX) * fontSize / customFont.fontFace.unitsPerEm; if (typeof dx[i] != 'undefined' && !isNaN(dx[i])) { measure += dx[i]; } } return measure; } var textToMeasure = svg.compressSpaces(text); if (!ctx.measureText) return textToMeasure.length * 10; ctx.save(); this.setContext(ctx); var width = ctx.measureText(textToMeasure).width; ctx.restore(); return width; }; // This method supposes what all custom fonts already loaded. // If some font will be loaded after this method call, will not be rendered correctly. // You need to call this method manually to update glyphs cache. this.setTextData = function (ctx) { if (this.hasOwnProperty('glyphInfo')) return; var that = this; var charArr = this.getText().split(''); var spacesNumber = this.getText().split(' ').length - 1; var dx = svg.ToNumberArray(this.parent.attribute('dx').valueOrDefault('0')); var letterSpacing = 0; var anchor = this.parent.style('text-anchor').valueOrDefault('start'); var thisSpacing = this.style('letter-spacing'); var parentSpacing = this.parent.style('letter-spacing'); if (!thisSpacing.hasValue() || thisSpacing.getValue() === 'inherit') { letterSpacing = parentSpacing.toPixels(); } else if (thisSpacing.hasValue()) { if (thisSpacing.getValue() !== 'initial' && thisSpacing.getValue() !== 'unset') { letterSpacing = thisSpacing.toPixels(); } } // fill letter-spacing cache this.letterSpacingCache = []; for (var i = 0; i < this.getText().length; i++) { this.letterSpacingCache.push(dx[i] !== undefined ? dx[i] : letterSpacing); } var dxSum = this.letterSpacingCache.reduce(function (acc, cur) { return acc + cur || 0 }, 0); this.textWidth = this.measureText(ctx); this.textHeight = this.fontSize(); var textFullWidth = Math.max(this.textWidth + dxSum, 0); this.glyphInfo = []; var fullPathWidth = this.getPathLength(); var startOffset = this.style('startOffset').numValueOrDefault(0) * fullPathWidth; var offset = 0; if (anchor === 'middle' || anchor === 'center') { offset = -textFullWidth / 2; } if (anchor === 'end' || anchor === 'right') { offset = -textFullWidth; } offset += startOffset; var getGetterSpacingAt = function (idx) { idx = idx || 0; return that.letterSpacingCache[idx] || 0; }; var findSegmentToFitChar = function (c, charI) { var glyphWidth = that.measureText(ctx, c); if (c === ' ' && anchor === 'justify' && textFullWidth < fullPathWidth) { glyphWidth += (fullPathWidth - textFullWidth) / spacesNumber; } if (charI > -1) { offset += getGetterSpacingAt(charI); } var splineStep = that.textHeight / 20; var segment = { p0: that.getEquidistantPointOnPath(offset, splineStep), p1: that.getEquidistantPointOnPath(offset + glyphWidth, splineStep) }; offset += glyphWidth; return segment; }; for (var i = 0; i < charArr.length; i++) { // Find such segment what distance between p0 and p1 is approx. width of glyph var segment = findSegmentToFitChar(charArr[i], i); if (segment.p0 === undefined || segment.p1 === undefined) { continue; } var width = that.getLineLength(segment.p0.x, segment.p0.y, segment.p1.x, segment.p1.y); // Note: Since glyphs are rendered one at a time, any kerning pair data built into the font will not be used. // Can foresee having a rough pair table built in that the developer can override as needed. // Or use "dx" attribute of the node as a naive replacement var kern = 0; // placeholder for future implementation var midpoint = that.getPointOnLine(kern + width / 2.0, segment.p0.x, segment.p0.y, segment.p1.x, segment.p1.y); var rotation = Math.atan2((segment.p1.y - segment.p0.y), (segment.p1.x - segment.p0.x)); this.glyphInfo.push({ transposeX: midpoint.x, transposeY: midpoint.y, text: charArr[i], rotation: rotation, p0: segment.p0, p1: segment.p1 }); } }; this.parsePathData = function (path) { this.pathLength = undefined; // reset path length if (!path) { return []; } var ca = []; var pp = path.PathParser; pp.reset(); // convert l, H, h, V, and v to L while (!pp.isEnd()) { var points = []; var cmd = null; var startX = pp.current ? pp.current.x : 0; var startY = pp.current ? pp.current.y : 0; pp.nextCommand(); var C = pp.command.toUpperCase(); switch (pp.command) { case 'M': case 'm': var p = pp.getAsCurrentPoint(); // pp.addMarker(p); points.push(p.x, p.y); pp.start = pp.current; while (!pp.isCommandOrEnd()) { var p = pp.getAsCurrentPoint(); points.push(p.x, p.y); cmd = 'L'; } break; case 'L': case 'l': while (!pp.isCommandOrEnd()) { var p = pp.getAsCurrentPoint(); points.push(p.x, p.y); } cmd = 'L'; break; case 'H': case 'h': while (!pp.isCommandOrEnd()) { var newP = new svg.Point((pp.isRelativeCommand() ? pp.current.x : 0) + pp.getScalar(), pp.current.y); points.push(newP.x, newP.y); pp.current = newP; } cmd = 'L'; break; case 'V': case 'v': while (!pp.isCommandOrEnd()) { var newP = new svg.Point(pp.current.x, (pp.isRelativeCommand() ? pp.current.y : 0) + pp.getScalar()); points.push(newP.x, newP.y); pp.current = newP; } cmd = 'L'; break; case 'C': case 'c': while (!pp.isCommandOrEnd()) { var p1 = pp.getPoint(); var cntrl = pp.getAsControlPoint(); var cp = pp.getAsCurrentPoint(); points.push(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y); } break; case 'S': case 's': while (!pp.isCommandOrEnd()) { var p1 = pp.getReflectedControlPoint(); var cntrl = pp.getAsControlPoint(); var cp = pp.getAsCurrentPoint(); points.push(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y); } cmd = 'C'; break; case 'Q': case 'q': while (!pp.isCommandOrEnd()) { var cntrl = pp.getAsControlPoint(); var cp = pp.getAsCurrentPoint(); points.push(cntrl.x, cntrl.y, cp.x, cp.y); } break; case 'T': case 't': while (!pp.isCommandOrEnd()) { var cntrl = pp.getReflectedControlPoint(); pp.control = cntrl; var cp = pp.getAsCurrentPoint(); points.push(cntrl.x, cntrl.y, cp.x, cp.y); } cmd = 'Q'; break; case 'A': case 'a': while (!pp.isCommandOrEnd()) { var curr = pp.current; // x1, y1 var rx = pp.getScalar(); var ry = pp.getScalar(); var xAxisRotation = pp.getScalar() * (Math.PI / 180.0); // φ var largeArcFlag = pp.getScalar(); // fA var sweepFlag = pp.getScalar(); // fS var cp = pp.getAsCurrentPoint(); // x2, y2 // Conversion from endpoint to center parameterization // http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes // x1', y1' var currp = new svg.Point( Math.cos(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.sin(xAxisRotation) * (curr.y - cp.y) / 2.0, -Math.sin(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.cos(xAxisRotation) * (curr.y - cp.y) / 2.0 ); // adjust radii var l = Math.pow(currp.x, 2) / Math.pow(rx, 2) + Math.pow(currp.y, 2) / Math.pow(ry, 2); if (l > 1) { rx *= Math.sqrt(l); ry *= Math.sqrt(l); } // cx', cy' var s = (largeArcFlag == sweepFlag ? -1 : 1) * Math.sqrt( ((Math.pow(rx, 2) * Math.pow(ry, 2)) - (Math.pow(rx, 2) * Math.pow(currp.y, 2)) - (Math.pow(ry, 2) * Math.pow(currp.x, 2))) / (Math.pow(rx, 2) * Math.pow(currp.y, 2) + Math.pow(ry, 2) * Math.pow(currp.x, 2)) ); if (isNaN(s)) s = 0; var cpp = new svg.Point(s * rx * currp.y / ry, s * -ry * currp.x / rx); // cx, cy var centp = new svg.Point( (curr.x + cp.x) / 2.0 + Math.cos(xAxisRotation) * cpp.x - Math.sin(xAxisRotation) * cpp.y, (curr.y + cp.y) / 2.0 + Math.sin(xAxisRotation) * cpp.x + Math.cos(xAxisRotation) * cpp.y ); // vector magnitude var m = function (v) { return Math.sqrt(Math.pow(v[0], 2) + Math.pow(v[1], 2)); }; // ratio between two vectors var r = function (u, v) { return (u[0] * v[0] + u[1] * v[1]) / (m(u) * m(v)) }; // angle between two vectors var a = function (u, v) { return (u[0] * v[1] < u[1] * v[0] ? -1 : 1) * Math.acos(r(u, v)); }; // initial angle var a1 = a([1, 0], [(currp.x - cpp.x) / rx, (currp.y - cpp.y) / ry]); // θ1 // angle delta var u = [(currp.x - cpp.x) / rx, (currp.y - cpp.y) / ry]; var v = [(-currp.x - cpp.x) / rx, (-currp.y - cpp.y) / ry]; var ad = a(u, v); // Δθ if (r(u, v) <= -1) ad = Math.PI; if (r(u, v) >= 1) ad = 0; if (sweepFlag === 0 && ad > 0) ad = ad - 2 * Math.PI; if (sweepFlag === 1 && ad < 0) ad = ad + 2 * Math.PI; points = [centp.x, centp.y, rx, ry, a1, ad, xAxisRotation, sweepFlag]; } break; case 'Z': case 'z': pp.current = pp.start; } if (C !== 'Z') { ca.push({ command: cmd || C, points: points, start: { x: startX, y: startY }, pathLength: this.calcLength(startX, startY, cmd || C, points) }); } else { ca.push({ command: 'z', points: [], start: undefined, pathLength: 0 }); } } return ca; }; this.getPathLength = function() { if (this.pathLength === undefined || this.pathLength === null || isNaN(this.pathLength)) { this.pathLength = 0; for (var l = 0; l < this.dataArray.length; l++) { if (this.dataArray[l].pathLength > 0) { this.pathLength += this.dataArray[l].pathLength; } } } return this.pathLength; }; this.getPointOnPath = function(distance) { var cumulativePathLength = 0; var fullLen = this.getPathLength(); var p = undefined; if (distance < -0.00005 || distance - 0.00005 > fullLen) return undefined; for(var i = 0; i < this.dataArray.length; i++) { var pathCmd = this.dataArray[i]; if (pathCmd && ( pathCmd.pathLength < 0.00005 || cumulativePathLength + pathCmd.pathLength + 0.00005 < distance ) ) { cumulativePathLength += pathCmd.pathLength; continue; } var delta = distance - cumulativePathLength; var currentT = undefined; switch (pathCmd.command) { case 'L': p = this.getPointOnLine(delta, pathCmd.start.x, pathCmd.start.y, pathCmd.points[0], pathCmd.points[1], pathCmd.start.x, pathCmd.start.y); break; case 'A': var start = pathCmd.points[4]; // 4 = theta var dTheta = pathCmd.points[5]; // 5 = dTheta var end = pathCmd.points[4] + dTheta; currentT = start + delta / pathCmd.pathLength * dTheta; if(dTheta < 0 && currentT < end || dTheta >= 0 && currentT > end) { break; } p = this.getPointOnEllipticalArc(pathCmd.points[0], pathCmd.points[1], pathCmd.points[2], pathCmd.points[3], currentT, pathCmd.points[6]); break; case 'C': currentT = delta / pathCmd.pathLength; if (currentT > 1) { currentT = 1; } p = this.getPointOnCubicBezier(currentT, pathCmd.start.x, pathCmd.start.y, pathCmd.points[0], pathCmd.points[1], pathCmd.points[2], pathCmd.points[3], pathCmd.points[4], pathCmd.points[5]); break; case 'Q': currentT = delta / pathCmd.pathLength; if (currentT > 1) { currentT = 1; } p = this.getPointOnQuadraticBezier(currentT, pathCmd.start.x, pathCmd.start.y, pathCmd.points[0], pathCmd.points[1], pathCmd.points[2], pathCmd.points[3]); break; } if (p !== undefined && p !== {}) { return p; } break; } }; // TODO need some optimisations. possibly build cache only for curved segments? this.buildEquidistantCache = function(step, precision) { var fullLen = this.getPathLength(); precision = precision || 0.25; // accuracy vs performance step = step || fullLen / 100; this.equidistantCache = this.equidistantCache || {}; if ( !this.equidistantCache.hasOwnProperty('points') || this.equidistantCache.step != step || this.equidistantCache.precision != precision ) { // Prepare cache this.equidistantCache = { step: step, precision: precision, points: [] }; // Calculate points var s = 0; for (var l = 0; l <= fullLen; l += precision) { var p0 = this.getPointOnPath(l), p1 = this.getPointOnPath(l + precision); if (p0 === undefined || p1 === undefined) continue; s += this.getLineLength(p0.x, p0.y, p1.x, p1.y); if (s >= step) { this.equidistantCache.points.push({ x: p0.x, y: p0.y, distance: l }); s -= step; } } } }; this.getEquidistantPointOnPath = function (targetDistance, step, precision) { this.buildEquidistantCache(step, precision); if (targetDistance < 0 || targetDistance - this.getPathLength() > 0.00005) return undefined; var idx = Math.round(targetDistance / this.getPathLength() * (this.equidistantCache.points.length - 1)); return this.equidistantCache.points[idx] || undefined; }; this.getLineLength = function (x1, y1, x2, y2) { return Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1)); }; this.getPointOnLine = function (dist, P1x, P1y, P2x, P2y, fromX, fromY) { if (fromX === undefined) { fromX = P1x; } if (fromY === undefined) { fromY = P1y; } var m = (P2y - P1y) / ((P2x - P1x) + 0.00000001); var run = Math.sqrt(dist * dist / (1 + m * m)); if (P2x < P1x) { run *= -1; } var rise = m * run; var pt; if (P2x === P1x) { // vertical line pt = { x: fromX, y: fromY + rise }; } else if ((fromY - P1y) / ((fromX - P1x) + 0.00000001) === m) { pt = { x: fromX + run, y: fromY + rise }; } else { var ix, iy; var len = this.getLineLength(P1x, P1y, P2x, P2y); if (len < 0.00000001) { return undefined; } var u = (((fromX - P1x) * (P2x - P1x)) + ((fromY - P1y) * (P2y - P1y))); u = u / (len * len); ix = P1x + u * (P2x - P1x); iy = P1y + u * (P2y - P1y); var pRise = this.getLineLength(fromX, fromY, ix, iy); var pRun = Math.sqrt(dist * dist - pRise * pRise); run = Math.sqrt(pRun * pRun / (1 + m * m)); if (P2x < P1x) { run *= -1; } rise = m * run; pt = { x: ix + run, y: iy + rise }; } return pt; }; this.getPointOnCubicBezier = function (pct, P1x, P1y, P2x, P2y, P3x, P3y, P4x, P4y) { function CB1(t) { return t * t * t; } function CB2(t) { return 3 * t * t * (1 - t); } function CB3(t) { return 3 * t * (1 - t) * (1 - t); } function CB4(t) { return (1 - t) * (1 - t) * (1 - t); } var x = P4x * CB1(pct) + P3x * CB2(pct) + P2x * CB3(pct) + P1x * CB4(pct); var y = P4y * CB1(pct) + P3y * CB2(pct) + P2y * CB3(pct) + P1y * CB4(pct); return { x: x, y: y }; }; this.getPointOnQuadraticBezier = function (pct, P1x, P1y, P2x, P2y, P3x, P3y) { function QB1(t) { return t * t; } function QB2(t) { return 2 * t * (1 - t); } function QB3(t) { return (1 - t) * (1 - t); } var x = P3x * QB1(pct) + P2x * QB2(pct) + P1x * QB3(pct); var y = P3y * QB1(pct) + P2y * QB2(pct) + P1y * QB3(pct); return { x: x, y: y }; }; this.getPointOnEllipticalArc = function (cx, cy, rx, ry, theta, psi) { var cosPsi = Math.cos(psi), sinPsi = Math.sin(psi); var pt = { x: rx * Math.cos(theta), y: ry * Math.sin(theta) }; return { x: cx + (pt.x * cosPsi - pt.y * sinPsi), y: cy + (pt.x * sinPsi + pt.y * cosPsi) }; }; this.calcLength = function (x, y, cmd, points) { var len, p1, p2, t; switch (cmd) { case 'L': return this.getLineLength(x, y, points[0], points[1]); case 'C': // Approximates by breaking curve into 100 line segments len = 0.0; p1 = this.getPointOnCubicBezier(0, x, y, points[0], points[1], points[2], points[3], points[4], points[5]); for (t = 0.01; t <= 1; t += 0.01) { p2 = this.getPointOnCubicBezier(t, x, y, points[0], points[1], points[2], points[3], points[4], points[5]); len += this.getLineLength(p1.x, p1.y, p2.x, p2.y); p1 = p2; } return len; case 'Q': // Approximates by breaking curve into 100 line segments len = 0.0; p1 = this.getPointOnQuadraticBezier(0, x, y, points[0], points[1], points[2], points[3]); for (t = 0.01; t <= 1; t += 0.01) { p2 = this.getPointOnQuadraticBezier(t, x, y, points[0], points[1], points[2], points[3]); len += this.getLineLength(p1.x, p1.y, p2.x, p2.y); p1 = p2; } return len; case 'A': // Approximates by breaking curve into line segments len = 0.0; var start = points[4]; // 4 = theta var dTheta = points[5]; // 5 = dTheta var end = points[4] + dTheta; var inc = Math.PI / 180.0; // 1 degree resolution if (Math.abs(start - end) < inc) { inc = Math.abs(start - end); } // Note: for purpose of calculating arc length, not going to worry about rotating X-axis by angle psi p1 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], start, 0); if (dTheta < 0) {// clockwise for (t = start - inc; t > end; t -= inc) { p2 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], t, 0); len += this.getLineLength(p1.x, p1.y, p2.x, p2.y); p1 = p2; } } else {// counter-clockwise for (t = start + inc; t < end; t += inc) { p2 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], t, 0); len += this.getLineLength(p1.x, p1.y, p2.x, p2.y); p1 = p2; } } p2 = this.getPointOnEllipticalArc(points[0], points[1], points[2], points[3], end, 0); len += this.getLineLength(p1.x, p1.y, p2.x, p2.y); return len; } return 0; }; this.dataArray = this.parsePathData(pathElement); }; svg.Element.textPath.prototype = new svg.Element.TextElementBase; // image element svg.Element.image = function (node) { this.base = svg.Element.RenderedElementBase; this.base(node); var href = this.getHrefAttribute().value; if (href == '') { return; } var isSvg = href.match(/\.svg$/); svg.Images.push(this); this.loaded = false; if (!isSvg) { this.img = doc.createElement('img'); if (svg.opts['useCORS'] == true) { this.img.crossOrigin = 'Anonymous'; } var self = this; this.img.onload = function () { self.loaded = true; }; this.img.onerror = function () { svg.log('ERROR: image "' + href + '" not found'); self.loaded = true; }; this.img.src = href; } else { this.img = svg.ajax(href); this.loaded = true; } this.renderChildren = function (ctx) { var x = this.attribute('x').toPixels('x'); var y = this.attribute('y').toPixels('y'); var width = this.attribute('width').toPixels('x'); var height = this.attribute('height').toPixels('y'); if (width == 0 || height == 0) return; ctx.save(); if (isSvg) { ctx.drawSvg(this.img, x, y, width, height); } else { ctx.translate(x, y); svg.AspectRatio(ctx, this.attribute('preserveAspectRatio').value, width, this.img.width, height, this.img.height, 0, 0); if (self.loaded) { if (this.img.complete === undefined || this.img.complete) { ctx.drawImage(this.img, 0, 0); } } } ctx.restore(); }; this.getBoundingBox = function () { var x = this.attribute('x').toPixels('x'); var y = this.attribute('y').toPixels('y'); var width = this.attribute('width').toPixels('x'); var height = this.attribute('height').toPixels('y'); return new svg.BoundingBox(x, y, x + width, y + height); }; }; svg.Element.image.prototype = new svg.Element.RenderedElementBase; // group element svg.Element.g = function (node) { this.base = svg.Element.RenderedElementBase; this.base(node); this.getBoundingBox = function (ctx) { var bb = new svg.BoundingBox(); for (var i = 0; i < this.children.length; i++) { bb.addBoundingBox(this.children[i].getBoundingBox(ctx)); } return bb; }; }; svg.Element.g.prototype = new svg.Element.RenderedElementBase; // symbol element svg.Element.symbol = function (node) { this.base = svg.Element.RenderedElementBase; this.base(node); this.render = function (/* ctx */) { // NO RENDER }; }; svg.Element.symbol.prototype = new svg.Element.RenderedElementBase; svg.ParseExternalUrl = function(url) { // single quotes [2] // v double quotes [3] // v v no quotes [4] // v v v var urlMatch = url.match(/url\(('([^']+)'|"([^"]+)"|([^'"\)]+))\)/) || []; return urlMatch[2] || urlMatch[3] || urlMatch[4]; }; // style element svg.Element.style = function (node) { this.base = svg.Element.ElementBase; this.base(node); // text, or spaces then CDATA var css = ''; for (var i = 0; i < node.childNodes.length; i++) { css += node.childNodes[i].data; } css = css.replace(/(\/\*([^*]|[\r\n]|(\*+([^*\/]|[\r\n])))*\*+\/)|(^[\s]*\/\/.*)/gm, ''); // remove comments css = svg.compressSpaces(css); // replace whitespace var cssDefs = css.split('}'); for (var i = 0; i < cssDefs.length; i++) { if (svg.trim(cssDefs[i]) != '') { var cssDef = cssDefs[i].split('{'); var cssClasses = cssDef[0].split(','); var cssProps = cssDef[1].split(';'); for (var j = 0; j < cssClasses.length; j++) { var cssClass = svg.trim(cssClasses[j]); if (cssClass != '') { var props = svg.Styles[cssClass] || {}; for (var k = 0; k < cssProps.length; k++) { var prop = cssProps[k].indexOf(':'); var name = cssProps[k].substr(0, prop); var value = cssProps[k].substr(prop + 1, cssProps[k].length - prop); if (name != null && value != null) { props[svg.trim(name)] = new svg.Property(svg.trim(name), svg.trim(value)); } } svg.Styles[cssClass] = props; svg.StylesSpecificity[cssClass] = getSelectorSpecificity(cssClass); if (cssClass == '@font-face' && !nodeEnv) { var fontFamily = props['font-family'].value.replace(/"/g, ''); var srcs = props['src'].value.split(','); for (var s = 0; s < srcs.length; s++) { if (srcs[s].indexOf('format("svg")') > 0) { var url = svg.ParseExternalUrl(srcs[s]); if (url) { var doc = svg.parseXml(svg.ajax(url)); var fonts = doc.getElementsByTagName('font'); for (var f = 0; f < fonts.length; f++) { var font = svg.CreateElement(fonts[f]); svg.Definitions[fontFamily] = font; } } } } } } } } } }; svg.Element.style.prototype = new svg.Element.ElementBase; // use element svg.Element.use = function (node) { this.base = svg.Element.RenderedElementBase; this.base(node); this.baseSetContext = this.setContext; this.setContext = function (ctx) { this.baseSetContext(ctx); if (this.attribute('x').hasValue()) ctx.translate(this.attribute('x').toPixels('x'), 0); if (this.attribute('y').hasValue()) ctx.translate(0, this.attribute('y').toPixels('y')); }; var element = this.getHrefAttribute().getDefinition(); this.path = function (ctx) { if (element != null) element.path(ctx); }; this.elementTransform = function () { if (element != null && element.style('transform', false, true).hasValue()) { return new svg.Transform(element.style('transform', false, true).value); } }; this.getBoundingBox = function (ctx) { if (element != null) return element.getBoundingBox(ctx); }; this.renderChildren = function (ctx) { if (element != null) { var tempSvg = element; if (element.type == 'symbol') { // render me using a temporary svg element in symbol cases (http://www.w3.org/TR/SVG/struct.html#UseElement) tempSvg = new svg.Element.svg(); tempSvg.type = 'svg'; tempSvg.attributes['viewBox'] = new svg.Property('viewBox', element.attribute('viewBox').value); tempSvg.attributes['preserveAspectRatio'] = new svg.Property('preserveAspectRatio', element.attribute('preserveAspectRatio').value); tempSvg.attributes['overflow'] = new svg.Property('overflow', element.attribute('overflow').value); tempSvg.children = element.children; } if (tempSvg.type == 'svg') { // if symbol or svg, inherit width/height from me if (this.attribute('width').hasValue()) tempSvg.attributes['width'] = new svg.Property('width', this.attribute('width').value); if (this.attribute('height').hasValue()) tempSvg.attributes['height'] = new svg.Property('height', this.attribute('height').value); } var oldParent = tempSvg.parent; tempSvg.parent = null; tempSvg.render(ctx); tempSvg.parent = oldParent; } }; }; svg.Element.use.prototype = new svg.Element.RenderedElementBase; // mask element svg.Element.mask = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.apply = function (ctx, element) { // render as temp svg var x = this.attribute('x').toPixels('x'); var y = this.attribute('y').toPixels('y'); var width = this.attribute('width').toPixels('x'); var height = this.attribute('height').toPixels('y'); if (width == 0 && height == 0) { var bb = new svg.BoundingBox(); for (var i = 0; i < this.children.length; i++) { bb.addBoundingBox(this.children[i].getBoundingBox(ctx)); } var x = Math.floor(bb.x1); var y = Math.floor(bb.y1); var width = Math.floor(bb.width()); var height = Math.floor(bb.height()); } // temporarily remove mask to avoid recursion var mask = element.style('mask').value; element.style('mask').value = ''; var cMask = createCanvas(x + width, y + height); var maskCtx = cMask.getContext('2d'); svg.SetDefaults(maskCtx); this.renderChildren(maskCtx); // convert mask to alpha with a fake node // TODO: refactor out apply from feColorMatrix var cm = new svg.Element.feColorMatrix({ nodeType: 1, childNodes: [], attributes: [ { nodeName: 'type', value: 'luminanceToAlpha' }, { nodeName: 'includeOpacity', value: 'true' }, ] }); cm.apply(maskCtx, 0, 0, x + width, y + height); var c = createCanvas(x + width, y + height); var tempCtx = c.getContext('2d'); svg.SetDefaults(tempCtx); element.render(tempCtx); tempCtx.globalCompositeOperation = 'destination-in'; tempCtx.fillStyle = maskCtx.createPattern(cMask, 'no-repeat'); tempCtx.fillRect(0, 0, x + width, y + height); ctx.fillStyle = tempCtx.createPattern(c, 'no-repeat'); ctx.fillRect(0, 0, x + width, y + height); // reassign mask element.style('mask').value = mask; }; this.render = function (/* ctx */) { // NO RENDER }; }; svg.Element.mask.prototype = new svg.Element.ElementBase; // clip element svg.Element.clipPath = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.apply = function (ctx) { var hasContext2D = (typeof CanvasRenderingContext2D !== 'undefined'); var oldBeginPath = ctx.beginPath; var oldClosePath = ctx.closePath; if (hasContext2D) { CanvasRenderingContext2D.prototype.beginPath = function () { }; CanvasRenderingContext2D.prototype.closePath = function () { }; } oldBeginPath.call(ctx); for (var i = 0; i < this.children.length; i++) { var child = this.children[i]; if (typeof child.path != 'undefined') { var transform = typeof child.elementTransform != 'undefined' && child.elementTransform(); // handle if (!transform && child.style('transform', false, true).hasValue()) { transform = new svg.Transform(child.style('transform', false, true).value); } if (transform) { transform.apply(ctx); } child.path(ctx); if (hasContext2D) { CanvasRenderingContext2D.prototype.closePath = oldClosePath; } if (transform) { transform.unapply(ctx); } } } oldClosePath.call(ctx); ctx.clip(); if (hasContext2D) { CanvasRenderingContext2D.prototype.beginPath = oldBeginPath; CanvasRenderingContext2D.prototype.closePath = oldClosePath; } }; this.render = function (/* ctx */) { // NO RENDER }; }; svg.Element.clipPath.prototype = new svg.Element.ElementBase; // filters svg.Element.filter = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.apply = function (ctx, element) { // render as temp svg var bb = element.getBoundingBox(ctx); var x = Math.floor(bb.x1); var y = Math.floor(bb.y1); var width = Math.floor(bb.width()); var height = Math.floor(bb.height()); // temporarily remove filter to avoid recursion var filter = element.style('filter').value; element.style('filter').value = ''; var px = 0, py = 0; for (var i = 0; i < this.children.length; i++) { var efd = this.children[i].extraFilterDistance || 0; px = Math.max(px, efd); py = Math.max(py, efd); } var c = createCanvas(width + 2 * px, height + 2 * py); var tempCtx = c.getContext('2d'); svg.SetDefaults(tempCtx); tempCtx.translate(-x + px, -y + py); element.render(tempCtx); // apply filters for (var i = 0; i < this.children.length; i++) { if (typeof this.children[i].apply == 'function') { this.children[i].apply(tempCtx, 0, 0, width + 2 * px, height + 2 * py); } } // render on me ctx.drawImage(c, 0, 0, width + 2 * px, height + 2 * py, x - px, y - py, width + 2 * px, height + 2 * py); // reassign filter element.style('filter', true).value = filter; }; this.render = function (/* ctx */) { // NO RENDER }; }; svg.Element.filter.prototype = new svg.Element.ElementBase; svg.Element.feDropShadow = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.addStylesFromStyleDefinition(); this.apply = function (/* ctx, x, y, width, height */) { // TODO: implement }; }; svg.Element.feDropShadow.prototype = new svg.Element.ElementBase; svg.Element.feMorphology = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.apply = function (/* ctx, x, y, width, height */) { // TODO: implement }; }; svg.Element.feMorphology.prototype = new svg.Element.ElementBase; svg.Element.feComposite = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.apply = function (/* ctx, x, y, width, height */) { // TODO: implement }; }; svg.Element.feComposite.prototype = new svg.Element.ElementBase; svg.Element.feColorMatrix = function (node) { this.base = svg.Element.ElementBase; this.base(node); var matrix = svg.ToNumberArray(this.attribute('values').value); switch (this.attribute('type').valueOrDefault('matrix')) { // http://www.w3.org/TR/SVG/filters.html#feColorMatrixElement case 'saturate': var s = matrix[0]; matrix = [0.213 + 0.787 * s, 0.715 - 0.715 * s, 0.072 - 0.072 * s, 0, 0, 0.213 - 0.213 * s, 0.715 + 0.285 * s, 0.072 - 0.072 * s, 0, 0, 0.213 - 0.213 * s, 0.715 - 0.715 * s, 0.072 + 0.928 * s, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1 ]; break; case 'hueRotate': var a = matrix[0] * Math.PI / 180.0; var c = function (m1, m2, m3) { return m1 + Math.cos(a) * m2 + Math.sin(a) * m3; }; matrix = [c(0.213, 0.787, -0.213), c(0.715, -0.715, -0.715), c(0.072, -0.072, 0.928), 0, 0, c(0.213, -0.213, 0.143), c(0.715, 0.285, 0.140), c(0.072, -0.072, -0.283), 0, 0, c(0.213, -0.213, -0.787), c(0.715, -0.715, 0.715), c(0.072, 0.928, 0.072), 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1 ]; break; case 'luminanceToAlpha': matrix = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0.2125, 0.7154, 0.0721, 0, 0, 0, 0, 0, 0, 1 ]; break; } function imGet(img, x, y, width, height, rgba) { return img[y * width * 4 + x * 4 + rgba]; } function imSet(img, x, y, width, height, rgba, val) { img[y * width * 4 + x * 4 + rgba] = val; } function m(i, v) { var mi = matrix[i]; return mi * (mi < 0 ? v - 255 : v); } var includeOpacity = this.attribute('includeOpacity').hasValue(); this.apply = function (ctx, x, y, width, height) { // assuming x==0 && y==0 for now var srcData = ctx.getImageData(0, 0, width, height); for (var y = 0; y < height; y++) { for (var x = 0; x < width; x++) { var r = imGet(srcData.data, x, y, width, height, 0); var g = imGet(srcData.data, x, y, width, height, 1); var b = imGet(srcData.data, x, y, width, height, 2); var a = imGet(srcData.data, x, y, width, height, 3); var nr = m(0, r) + m(1, g) + m(2, b) + m(3, a) + m(4, 1); var ng = m(5, r) + m(6, g) + m(7, b) + m(8, a) + m(9, 1); var nb = m(10, r) + m(11, g) + m(12, b) + m(13, a) + m(14, 1); var na = m(15, r) + m(16, g) + m(17, b) + m(18, a) + m(19, 1); if (includeOpacity) { nr = ng = nb = 0; na *= a / 255; } imSet(srcData.data, x, y, width, height, 0, nr); imSet(srcData.data, x, y, width, height, 1, ng); imSet(srcData.data, x, y, width, height, 2, nb); imSet(srcData.data, x, y, width, height, 3, na); } } ctx.clearRect(0, 0, width, height); ctx.putImageData(srcData, 0, 0); }; }; svg.Element.feColorMatrix.prototype = new svg.Element.ElementBase; svg.Element.feGaussianBlur = function (node) { this.base = svg.Element.ElementBase; this.base(node); this.blurRadius = Math.floor(this.attribute('stdDeviation').numValue()); this.extraFilterDistance = this.blurRadius; this.apply = function (ctx, x, y, width, height) { if (!stackblurCanvas || typeof stackblurCanvas.canvasRGBA === 'undefined') { svg.log('ERROR: StackBlur.js must be included for blur to work'); return; } // StackBlur requires canvas be on document ctx.canvas.id = svg.UniqueId(); { ctx.canvas.style.display = 'none'; doc.body.appendChild(ctx.canvas); } stackblurCanvas.canvasRGBA(ctx.canvas, x, y, width, height, this.blurRadius); { doc.body.removeChild(ctx.canvas); } }; }; svg.Element.feGaussianBlur.prototype = new svg.Element.ElementBase; // title element, do nothing svg.Element.title = function (/* node */) { }; svg.Element.title.prototype = new svg.Element.ElementBase; // desc element, do nothing svg.Element.desc = function (/* node */) { }; svg.Element.desc.prototype = new svg.Element.ElementBase; svg.Element.MISSING = function (node) { svg.log('ERROR: Element \'' + node.nodeName + '\' not yet implemented.'); }; svg.Element.MISSING.prototype = new svg.Element.ElementBase; // element factory svg.CreateElement = function (node) { var className = node.nodeName.replace(/^[^:]+:/, ''); // remove namespace className = className.replace(/\-/g, ''); // remove dashes var e = null; if (typeof svg.Element[className] != 'undefined') { e = new svg.Element[className](node); } else { e = new svg.Element.MISSING(node); } e.type = node.nodeName; return e; }; // load from url svg.load = function (ctx, url) { svg.loadXml(ctx, svg.ajax(url)); }; // load from xml svg.loadXml = function (ctx, xml) { svg.loadXmlDoc(ctx, svg.parseXml(xml)); }; svg.loadXmlDoc = function (ctx, dom) { svg.init(ctx); var mapXY = function (p) { var e = ctx.canvas; while (e) { p.x -= e.offsetLeft; p.y -= e.offsetTop; e = e.offsetParent; } if (windowEnv.scrollX) p.x += windowEnv.scrollX; if (windowEnv.scrollY) p.y += windowEnv.scrollY; return p; }; // bind mouse if (svg.opts['ignoreMouse'] != true) { ctx.canvas.onclick = function (e) { var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY)); svg.Mouse.onclick(p.x, p.y); }; ctx.canvas.onmousemove = function (e) { var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY)); svg.Mouse.onmousemove(p.x, p.y); }; } var e = svg.CreateElement(dom.documentElement); e.root = true; e.addStylesFromStyleDefinition(); // render loop var isFirstRender = true; var draw = function () { svg.ViewPort.Clear(); if (ctx.canvas.parentNode) { svg.ViewPort.SetCurrent(ctx.canvas.parentNode.clientWidth, ctx.canvas.parentNode.clientHeight); } else { svg.ViewPort.SetCurrent(defaultClientWidth, defaultClientHeight); } if (svg.opts['ignoreDimensions'] != true && (isFirstRender || (svg.opts['scaleWidth'] == null && svg.opts['scaleHeight'] == null))) { // set canvas size if (e.style('width').hasValue()) { ctx.canvas.width = e.style('width').toPixels('x'); if (ctx.canvas.style) { ctx.canvas.style.width = ctx.canvas.width + 'px'; } } if (e.style('height').hasValue()) { ctx.canvas.height = e.style('height').toPixels('y'); if (ctx.canvas.style) { ctx.canvas.style.height = ctx.canvas.height + 'px'; } } } var cWidth = ctx.canvas.clientWidth || ctx.canvas.width; var cHeight = ctx.canvas.clientHeight || ctx.canvas.height; if (svg.opts['ignoreDimensions'] == true && e.style('width').hasValue() && e.style('height').hasValue()) { cWidth = e.style('width').toPixels('x'); cHeight = e.style('height').toPixels('y'); } svg.ViewPort.SetCurrent(cWidth, cHeight); if (svg.opts['offsetX'] != null) e.attribute('x', true).value = svg.opts['offsetX']; if (svg.opts['offsetY'] != null) e.attribute('y', true).value = svg.opts['offsetY']; if (svg.opts['scaleWidth'] != null || svg.opts['scaleHeight'] != null) { var xRatio = null, yRatio = null, viewBox = svg.ToNumberArray(e.attribute('viewBox').value); if (svg.opts['scaleWidth'] != null) { if (e.attribute('width').hasValue()) xRatio = e.attribute('width').toPixels('x') / svg.opts['scaleWidth']; else if (!isNaN(viewBox[2])) xRatio = viewBox[2] / svg.opts['scaleWidth']; } if (svg.opts['scaleHeight'] != null) { if (e.attribute('height').hasValue()) yRatio = e.attribute('height').toPixels('y') / svg.opts['scaleHeight']; else if (!isNaN(viewBox[3])) yRatio = viewBox[3] / svg.opts['scaleHeight']; } if (xRatio == null) { xRatio = yRatio; } if (yRatio == null) { yRatio = xRatio; } e.attribute('width', true).value = svg.opts['scaleWidth']; e.attribute('height', true).value = svg.opts['scaleHeight']; e.style('transform', true, true).value += ' scale(' + (1.0 / xRatio) + ',' + (1.0 / yRatio) + ')'; } // clear and render if (svg.opts['ignoreClear'] != true) { ctx.clearRect(0, 0, cWidth, cHeight); } e.render(ctx); if (isFirstRender) { isFirstRender = false; if (typeof svg.opts['renderCallback'] == 'function') svg.opts['renderCallback'](dom); } }; var waitingForImages = true; if (svg.ImagesLoaded()) { waitingForImages = false; draw(); } { //In node, in the most cases, we don't need the animation listener. svg.intervalID = setInterval(function () { var needUpdate = false; if (waitingForImages && svg.ImagesLoaded()) { waitingForImages = false; needUpdate = true; } // need update from mouse events? if (svg.opts['ignoreMouse'] != true) { needUpdate = needUpdate || svg.Mouse.hasEvents(); } // need update from animations? if (svg.opts['ignoreAnimation'] != true) { for (var i = 0; i < svg.Animations.length; i++) { var needAnimationUpdate = svg.Animations[i].update(1000 / svg.FRAMERATE); needUpdate = needUpdate || needAnimationUpdate; } } // need update from redraw? if (typeof svg.opts['forceRedraw'] == 'function') { if (svg.opts['forceRedraw']() == true) needUpdate = true; } // render if needed if (needUpdate) { draw(); svg.Mouse.runEvents(); // run and clear our events } }, 1000 / svg.FRAMERATE); } }; svg.stop = function () { if (svg.intervalID) { clearInterval(svg.intervalID); } }; svg.Mouse = new (function () { this.events = []; this.hasEvents = function () { return this.events.length != 0; }; this.onclick = function (x, y) { this.events.push({ type: 'onclick', x: x, y: y, run: function (e) { if (e.onclick) e.onclick(); } }); }; this.onmousemove = function (x, y) { this.events.push({ type: 'onmousemove', x: x, y: y, run: function (e) { if (e.onmousemove) e.onmousemove(); } }); }; this.eventElements = []; this.checkPath = function (element, ctx) { for (var i = 0; i < this.events.length; i++) { var e = this.events[i]; if (ctx.isPointInPath && ctx.isPointInPath(e.x, e.y)) this.eventElements[i] = element; } }; this.checkBoundingBox = function (element, bb) { if (!bb) { return; } for (var i = 0; i < this.events.length; i++) { var e = this.events[i]; if (bb.isPointInBox(e.x, e.y)) this.eventElements[i] = element; } }; this.runEvents = function () { svg.ctx.canvas.style.cursor = ''; for (var i = 0; i < this.events.length; i++) { var e = this.events[i]; var element = this.eventElements[i]; while (element) { e.run(element); element = element.parent; } } // done running, clear this.events = []; this.eventElements = []; }; }); return svg; } if (typeof CanvasRenderingContext2D != 'undefined') { CanvasRenderingContext2D.prototype.drawSvg = function (s, dx, dy, dw, dh, opts) { var cOpts = { ignoreMouse: true, ignoreAnimation: true, ignoreDimensions: true, ignoreClear: true, offsetX: dx, offsetY: dy, scaleWidth: dw, scaleHeight: dh }; for (var prop in opts) { if (opts.hasOwnProperty(prop)) { cOpts[prop] = opts[prop]; } } canvg(this.canvas, s, cOpts); }; } // for tests canvg._build = build; module.exports = canvg; }); return canvg_1; })));